Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-04-2024 02:24

General

  • Target

    setup_installer.exe

  • Size

    1.9MB

  • MD5

    7a31dc882ea1b0e7a8ffebcd21059cd5

  • SHA1

    38ebd858eb6e5e540b5900c97e77a9f3ff92e421

  • SHA256

    28a96de1e3a6ac6f0105145b7155ebc1eafb9d1885d09c84b65ffd60e9b8951f

  • SHA512

    eca9ee232b660e3e8244a61e8a7b8e6e63499849cc3ab2a07941e032142ef89d46a4c7a219b32c811b36245ebb0ddda5313b475590e6f478df6ee2f7571bde6a

  • SSDEEP

    49152:xcBmEwJ84vLRaBtIl9mVzZxa8jQtrpR7Js2Q7D85Qvr5S:xECvLUBsg+8UttFJ9zQVS

Malware Config

Extracted

Family

smokeloader

Botnet

pub6

Extracted

Family

vidar

Version

40

Botnet

706

C2

https://lenak513.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

nullmixer

C2

http://marisana.xyz/

Signatures

  • NullMixer

    NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 5 IoCs
  • ASPack v2.12-2.42 3 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 6 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 9 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 18 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
    "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\setup_install.exe
      "C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\setup_install.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:764
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 743bcecceb1.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4996
        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\743bcecceb1.exe
          743bcecceb1.exe
          4⤵
          • Executes dropped EXE
          • Checks SCSI registry key(s)
          PID:4776
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 364
            5⤵
            • Program crash
            PID:4540
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 9a1258ee22.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4124
        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\9a1258ee22.exe
          9a1258ee22.exe
          4⤵
          • Executes dropped EXE
          PID:3168
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 1540
            5⤵
            • Program crash
            PID:4440
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 2f9772a9fa1a504.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:768
        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\2f9772a9fa1a504.exe
          2f9772a9fa1a504.exe
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2432
          • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\2f9772a9fa1a504.exe
            "C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\2f9772a9fa1a504.exe" -a
            5⤵
            • Executes dropped EXE
            • Modifies system certificate store
            PID:3680
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c f2b619b03.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1292
        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\f2b619b03.exe
          f2b619b03.exe
          4⤵
          • Executes dropped EXE
          PID:3772
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 3aeaaa7282b14785.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3708
        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\3aeaaa7282b14785.exe
          3aeaaa7282b14785.exe
          4⤵
          • Executes dropped EXE
          PID:4668
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 62b647d434837.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3584
        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\62b647d434837.exe
          62b647d434837.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:4660
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c c6e27365696.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4772
        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\c6e27365696.exe
          c6e27365696.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:532
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 476
        3⤵
        • Program crash
        PID:4844
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 764 -ip 764
    1⤵
      PID:2348
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4776 -ip 4776
      1⤵
        PID:872
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
        • Checks SCSI registry key(s)
        • Enumerates system info in registry
        • Modifies data under HKEY_USERS
        • Suspicious use of AdjustPrivilegeToken
        PID:3132
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3168 -ip 3168
        1⤵
          PID:3712

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Defense Evasion

        Subvert Trust Controls

        1
        T1553

        Install Root Certificate

        1
        T1553.004

        Modify Registry

        1
        T1112

        Discovery

        Query Registry

        3
        T1012

        System Information Discovery

        4
        T1082

        Peripheral Device Discovery

        1
        T1120

        Command and Control

        Web Service

        1
        T1102

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\2f9772a9fa1a504.exe
          Filesize

          56KB

          MD5

          3263859df4866bf393d46f06f331a08f

          SHA1

          5b4665de13c9727a502f4d11afb800b075929d6c

          SHA256

          9dcacda3913e30cafd92c909648b5bffde14b8e39e6adbfb15628006c0d4d3c2

          SHA512

          58205110a017f5d73dd131fefb1e3bbbcc670ed0c645aeefebe5281579c7b1dceffa56671cd7b186554bdb81710e21018ed0d7088a27517dfc5e48d6d3578cf6

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\3aeaaa7282b14785.exe
          Filesize

          631KB

          MD5

          a6b572db00b94224d6637341961654cb

          SHA1

          9f0dbcce0496fede379ce4ecbfc2aa2afbb8ee8c

          SHA256

          91ef165ad61d09dfda345f827b8ff78a18a3e40d8e12454cdb494d1555af7656

          SHA512

          39ad03d8645a3a90b770b4fe05c43c2dadfc8b80277688ec01597bc0cda6b3fafe9e158f72ebc7db4ce98605f44fe3eacda6573f9e32e01bda0ad66efc17274c

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\62b647d434837.exe
          Filesize

          165KB

          MD5

          5f6f8e5a5e6ba53f8f785b575573451d

          SHA1

          97b99adefc3ecca6be60c882b563853091f586ef

          SHA256

          6f8a7657b62f79b148d6b930641ef70eb0d8bc909377439819a0db601ca1c0d8

          SHA512

          ff6491641fc985bd03421e8565b36322017da9a647015bcc399b3ca73c675749d3e22eee5e437283b22b6a05240f6bd1bf8eddc0ef3be233fd8c40fe82fead05

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\743bcecceb1.exe
          Filesize

          312KB

          MD5

          ca31229dcd5ab0f1447ce772677f5f3e

          SHA1

          656eb7349db31d657d96978e5e3a358f8a055016

          SHA256

          865a53db7342b0ddd8e0762acab2906e9cb2695eae0eb3035b58e8af5fdb248d

          SHA512

          245439c54f167b757fa9737c863ef3f99e93bf6d107d63a029d866b736f73228c69d67bcb99690b9906dc06beb08f33b36aacc483c3b61cb2f6090c806e86691

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\9a1258ee22.exe
          Filesize

          649KB

          MD5

          76ad7237cb514008311358f5bbc92b6b

          SHA1

          370aee74f6713913db081f88bfef33f8ea437410

          SHA256

          942878ae21bf55029e648ed216f40ecfd4b61e6b581cd1a2f82fdcd20feb3a10

          SHA512

          0f89a59f59c4a8d153442a90f2e4f0eb7ac153af9f65c585259729425deb73e2859c1c9d48e5505ecb7f5686136aa0171e689227fa0b940236bc1c775621602e

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\c6e27365696.exe
          Filesize

          8KB

          MD5

          bf78562d81291113d7664f8b10b38019

          SHA1

          7c1e6b7a9abcf1f96eb79ffdc7ea1831ad7f7889

          SHA256

          aa18f5ee23ba9686522956203b349217aebdc2c921471db1a89d4bc16d699251

          SHA512

          c94ac906daf9ca91983c58d353984b1b84334d7fa57581b32fd029b0db582ca00ef67f5ef0a1fc0fd624aa30d220503e5f1b70617a303712b2f5886ab5672f36

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\f2b619b03.exe
          Filesize

          241KB

          MD5

          5866ab1fae31526ed81bfbdf95220190

          SHA1

          75a5e08b3b9ad2dff35dfbbb3ffe8d983c2be25f

          SHA256

          9e1a149370efe9814bf2cbd87acfcfa410d1769efd86a9722da4373d6716d22e

          SHA512

          8d99ab09e84e4ef309da34be94946cbfcffeb1c0ca49e2452deb738d801e551062ebb134f1b99a9baf03003a8e720d525521ce09aeac341d3cba3fcfbc618fb5

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\libcurl.dll
          Filesize

          218KB

          MD5

          d09be1f47fd6b827c81a4812b4f7296f

          SHA1

          028ae3596c0790e6d7f9f2f3c8e9591527d267f7

          SHA256

          0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e

          SHA512

          857f44a1383c29208509b8f1164b6438d750d5bb4419add7626986333433e67a0d1211ec240ce9472f30a1f32b16c8097aceba4b2255641b3d8928f94237f595

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\libcurlpp.dll
          Filesize

          54KB

          MD5

          e6e578373c2e416289a8da55f1dc5e8e

          SHA1

          b601a229b66ec3d19c2369b36216c6f6eb1c063e

          SHA256

          43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f

          SHA512

          9df6a8c418113a77051f6cb02745ad48c521c13cdadb85e0e37f79e29041464c8c7d7ba8c558fdd877035eb8475b6f93e7fc62b38504ddfe696a61480cabac89

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\libgcc_s_dw2-1.dll
          Filesize

          113KB

          MD5

          9aec524b616618b0d3d00b27b6f51da1

          SHA1

          64264300801a353db324d11738ffed876550e1d3

          SHA256

          59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e

          SHA512

          0648a26940e8f4aad73b05ad53e43316dd688e5d55e293cce88267b2b8744412be2e0d507dadad830776bf715bcd819f00f5d1f7ac1c5f1c4f682fb7457a20d0

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\libstdc++-6.dll
          Filesize

          647KB

          MD5

          5e279950775baae5fea04d2cc4526bcc

          SHA1

          8aef1e10031c3629512c43dd8b0b5d9060878453

          SHA256

          97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87

          SHA512

          666325e9ed71da4955058aea31b91e2e848be43211e511865f393b7f537c208c6b31c182f7d728c2704e9fc87e7d1be3f98f5fee4d34f11c56764e1c599afd02

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\libwinpthread-1.dll
          Filesize

          69KB

          MD5

          1e0d62c34ff2e649ebc5c372065732ee

          SHA1

          fcfaa36ba456159b26140a43e80fbd7e9d9af2de

          SHA256

          509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723

          SHA512

          3653f8ed8ad3476632f731a3e76c6aae97898e4bf14f70007c93e53bc443906835be29f861c4a123db5b11e0f3dd5013b2b3833469a062060825df9ee708dc61

        • C:\Users\Admin\AppData\Local\Temp\7zSC2BBA258\setup_install.exe
          Filesize

          4.2MB

          MD5

          a002887520541f37f1b182856dd6ab7d

          SHA1

          e352c82608132fd5c09a3b33cb3386d06bc702a0

          SHA256

          b5f59efe6b0a0f207940166d338da8c9cc701b90680fda614f4d83aba011c6b8

          SHA512

          4a8d2a0010a7b8b74662227ed679aab5bca07d6fbf47895408d010d45e20fa04d1cee1d41d53179a694750a7988356fb26dd3a92279d4533756dbba80126871e

        • memory/532-82-0x00007FF977570000-0x00007FF978031000-memory.dmp
          Filesize

          10.8MB

        • memory/532-121-0x00000000011A0000-0x00000000011B0000-memory.dmp
          Filesize

          64KB

        • memory/532-85-0x00000000011A0000-0x00000000011B0000-memory.dmp
          Filesize

          64KB

        • memory/532-120-0x00007FF977570000-0x00007FF978031000-memory.dmp
          Filesize

          10.8MB

        • memory/532-76-0x00000000009C0000-0x00000000009C8000-memory.dmp
          Filesize

          32KB

        • memory/764-39-0x000000006FE40000-0x000000006FFC6000-memory.dmp
          Filesize

          1.5MB

        • memory/764-43-0x000000006B280000-0x000000006B2A6000-memory.dmp
          Filesize

          152KB

        • memory/764-38-0x000000006FE40000-0x000000006FFC6000-memory.dmp
          Filesize

          1.5MB

        • memory/764-37-0x000000006FE40000-0x000000006FFC6000-memory.dmp
          Filesize

          1.5MB

        • memory/764-34-0x000000006B440000-0x000000006B4CF000-memory.dmp
          Filesize

          572KB

        • memory/764-97-0x0000000000400000-0x000000000071E000-memory.dmp
          Filesize

          3.1MB

        • memory/764-98-0x0000000064940000-0x0000000064959000-memory.dmp
          Filesize

          100KB

        • memory/764-99-0x000000006B280000-0x000000006B2A6000-memory.dmp
          Filesize

          152KB

        • memory/764-100-0x000000006EB40000-0x000000006EB63000-memory.dmp
          Filesize

          140KB

        • memory/764-41-0x000000006FE40000-0x000000006FFC6000-memory.dmp
          Filesize

          1.5MB

        • memory/764-42-0x000000006B280000-0x000000006B2A6000-memory.dmp
          Filesize

          152KB

        • memory/764-40-0x000000006FE40000-0x000000006FFC6000-memory.dmp
          Filesize

          1.5MB

        • memory/764-36-0x000000006B440000-0x000000006B4CF000-memory.dmp
          Filesize

          572KB

        • memory/764-35-0x0000000064940000-0x0000000064959000-memory.dmp
          Filesize

          100KB

        • memory/764-29-0x000000006B280000-0x000000006B2A6000-memory.dmp
          Filesize

          152KB

        • memory/764-33-0x000000006B440000-0x000000006B4CF000-memory.dmp
          Filesize

          572KB

        • memory/764-102-0x000000006FE40000-0x000000006FFC6000-memory.dmp
          Filesize

          1.5MB

        • memory/764-101-0x000000006B440000-0x000000006B4CF000-memory.dmp
          Filesize

          572KB

        • memory/764-31-0x00000000009A0000-0x0000000000A2F000-memory.dmp
          Filesize

          572KB

        • memory/3168-96-0x0000000000400000-0x0000000000958000-memory.dmp
          Filesize

          5.3MB

        • memory/3168-118-0x0000000000400000-0x0000000000958000-memory.dmp
          Filesize

          5.3MB

        • memory/3168-92-0x0000000000A70000-0x0000000000B0D000-memory.dmp
          Filesize

          628KB

        • memory/3168-91-0x0000000000C50000-0x0000000000D50000-memory.dmp
          Filesize

          1024KB

        • memory/3168-119-0x0000000000A70000-0x0000000000B0D000-memory.dmp
          Filesize

          628KB

        • memory/4660-84-0x00007FF977570000-0x00007FF978031000-memory.dmp
          Filesize

          10.8MB

        • memory/4660-86-0x0000000002F30000-0x0000000002F36000-memory.dmp
          Filesize

          24KB

        • memory/4660-106-0x00007FF977570000-0x00007FF978031000-memory.dmp
          Filesize

          10.8MB

        • memory/4660-90-0x000000001BD30000-0x000000001BD40000-memory.dmp
          Filesize

          64KB

        • memory/4660-89-0x0000000003070000-0x0000000003076000-memory.dmp
          Filesize

          24KB

        • memory/4660-87-0x0000000002F40000-0x0000000002F62000-memory.dmp
          Filesize

          136KB

        • memory/4660-83-0x0000000000FB0000-0x0000000000FE0000-memory.dmp
          Filesize

          192KB

        • memory/4776-94-0x0000000000BD0000-0x0000000000CD0000-memory.dmp
          Filesize

          1024KB

        • memory/4776-93-0x00000000001C0000-0x00000000001C9000-memory.dmp
          Filesize

          36KB

        • memory/4776-104-0x00000000001C0000-0x00000000001C9000-memory.dmp
          Filesize

          36KB

        • memory/4776-95-0x0000000000400000-0x0000000000904000-memory.dmp
          Filesize

          5.0MB