Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-07-2024 01:20

General

  • Target

    b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8.exe

  • Size

    1.9MB

  • MD5

    44809186c26c6851b67bd98c5498f3ca

  • SHA1

    32de1b7315ecf0f684cb5e3f5b6ccc8b77b214f5

  • SHA256

    b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8

  • SHA512

    80c31c6b5bc3dd6c7c6be4301f37748e31906e27d19b217601b105bad092aab11c7a24be7a9ad885b113fa24dc77775df8200e2238c7cd91fca19b9a05f40982

  • SSDEEP

    49152:0vGfBq3ndOzIxgNSqDsslj7MpDtGq4mzX:0vSkozImQqDssRMp7TzX

Malware Config

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

C2

http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

jony

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Stealc

    Stealc is an infostealer written in C++.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 6 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 12 IoCs

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

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Identifies Wine through registry keys 2 TTPs 6 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8.exe
    "C:\Users\Admin\AppData\Local\Temp\b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:3708
    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
      "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Checks computer location settings
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Users\Admin\AppData\Local\Temp\1000006001\7c9bcf2a9e.exe
        "C:\Users\Admin\AppData\Local\Temp\1000006001\7c9bcf2a9e.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4684
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BFCFBFBFBK.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1336
          • C:\Users\Admin\AppData\Local\Temp\BFCFBFBFBK.exe
            "C:\Users\Admin\AppData\Local\Temp\BFCFBFBFBK.exe"
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Identifies Wine through registry keys
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious behavior: EnumeratesProcesses
            PID:4400
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\FBFCFIEBKE.exe"
          4⤵
          • Checks computer location settings
          • Suspicious use of SetWindowsHookEx
          PID:4468
  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:1072
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3300 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:3
    1⤵
      PID:1576
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3288 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:832
      • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Identifies Wine through registry keys
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        PID:2976
      • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Identifies Wine through registry keys
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        PID:5076

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Defense Evasion

      Virtualization/Sandbox Evasion

      2
      T1497

      Credential Access

      Unsecured Credentials

      3
      T1552

      Credentials In Files

      3
      T1552.001

      Discovery

      Query Registry

      6
      T1012

      Virtualization/Sandbox Evasion

      2
      T1497

      System Information Discovery

      4
      T1082

      Collection

      Data from Local System

      3
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\mozglue.dll
        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll
        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
        Filesize

        2B

        MD5

        d751713988987e9331980363e24189ce

        SHA1

        97d170e1550eee4afc0af065b78cda302a97674c

        SHA256

        4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

        SHA512

        b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
        Filesize

        40B

        MD5

        20d4b8fa017a12a108c87f540836e250

        SHA1

        1ac617fac131262b6d3ce1f52f5907e31d5f6f00

        SHA256

        6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

        SHA512

        507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

      • C:\Users\Admin\AppData\Local\Temp\1000006001\7c9bcf2a9e.exe
        Filesize

        2.4MB

        MD5

        58972b34ce77f8d7bbaa3f5b5344db20

        SHA1

        a3dc18dbe5abb0fffe62427366ff5f52e16a28a7

        SHA256

        048802231eccee2a6db341d1a4e92b2b1671eb287da215ad35fcf2bad70fa700

        SHA512

        4539e1723d3595faa2d53488623d33cd94d06ece1503e9359dabaa7fb6184cc63717f5d8d25ada897603ee40381ab881789b793776fab97b8f8c619cd2da133e

      • C:\Users\Admin\AppData\Local\Temp\BFCFBFBFBK.exe
        Filesize

        1.8MB

        MD5

        3c6a376f94f27d869bc1fe1eaaff7aa8

        SHA1

        4301db4dca953e9fa15707593e147b75c42b75d0

        SHA256

        898086f31ec7f44d394fd680483932289602d5cbccec069c300ee5d92bb0d3aa

        SHA512

        a628f6c31ceb970c777e25260c100ead0095b5bc2788420996410cbf6dfd3f8bfec51653559a4cf34f302db5722717df19a8e9f2009e192419cf7f1500b9921c

      • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        Filesize

        1.9MB

        MD5

        44809186c26c6851b67bd98c5498f3ca

        SHA1

        32de1b7315ecf0f684cb5e3f5b6ccc8b77b214f5

        SHA256

        b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8

        SHA512

        80c31c6b5bc3dd6c7c6be4301f37748e31906e27d19b217601b105bad092aab11c7a24be7a9ad885b113fa24dc77775df8200e2238c7cd91fca19b9a05f40982

      • memory/1072-42-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1072-41-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-112-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-144-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-22-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-23-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-20-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-151-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-147-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-146-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-145-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-55-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-21-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-134-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-143-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-142-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-135-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-118-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-119-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-136-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-138-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/1476-137-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/2976-140-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/2976-141-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/3708-6-0x0000000000430000-0x0000000000905000-memory.dmp
        Filesize

        4.8MB

      • memory/3708-0-0x0000000000430000-0x0000000000905000-memory.dmp
        Filesize

        4.8MB

      • memory/3708-19-0x0000000000430000-0x0000000000905000-memory.dmp
        Filesize

        4.8MB

      • memory/3708-1-0x00000000772E4000-0x00000000772E6000-memory.dmp
        Filesize

        8KB

      • memory/3708-2-0x0000000000431000-0x000000000045F000-memory.dmp
        Filesize

        184KB

      • memory/3708-18-0x0000000000430000-0x0000000000905000-memory.dmp
        Filesize

        4.8MB

      • memory/3708-4-0x0000000000430000-0x0000000000905000-memory.dmp
        Filesize

        4.8MB

      • memory/3708-3-0x0000000000430000-0x0000000000905000-memory.dmp
        Filesize

        4.8MB

      • memory/4400-133-0x0000000001000000-0x000000000149D000-memory.dmp
        Filesize

        4.6MB

      • memory/4400-132-0x0000000001000000-0x000000000149D000-memory.dmp
        Filesize

        4.6MB

      • memory/4684-111-0x0000000000050000-0x0000000000C48000-memory.dmp
        Filesize

        12.0MB

      • memory/4684-43-0x0000000061E00000-0x0000000061EF3000-memory.dmp
        Filesize

        972KB

      • memory/4684-123-0x0000000000050000-0x0000000000C48000-memory.dmp
        Filesize

        12.0MB

      • memory/4684-39-0x0000000000050000-0x0000000000C48000-memory.dmp
        Filesize

        12.0MB

      • memory/5076-149-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB

      • memory/5076-150-0x0000000000120000-0x00000000005F5000-memory.dmp
        Filesize

        4.8MB