Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 22:21

General

  • Target

    b1234e49f37f6fc2d6715ddb9c83df98849c426eba924dd2faa5fe7d4d78a08a.exe

  • Size

    5.3MB

  • MD5

    1b069699986845b90e02e1a96827a4f1

  • SHA1

    026afba6186f5abaac6e10fa5205d7d480d04678

  • SHA256

    b1234e49f37f6fc2d6715ddb9c83df98849c426eba924dd2faa5fe7d4d78a08a

  • SHA512

    6c9e8c6ff5ae92b37bc99fa77abbe44b58a9f6502226bb13379a0e84b9b84c9a69b79f23e86d44e4af25af648612b3413b7cb7a716952bb5911273cd21debb4b

  • SSDEEP

    98304:C2b02CPWcPecIlge2AN2HrYM2geq6XWxGVAn48tK/h6E5/89qeoYe+NXkcZWuUQE:V0/Pe7gWorYngeqem48q6EBmpe+NXu/1

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1234e49f37f6fc2d6715ddb9c83df98849c426eba924dd2faa5fe7d4d78a08a.exe
    "C:\Users\Admin\AppData\Local\Temp\b1234e49f37f6fc2d6715ddb9c83df98849c426eba924dd2faa5fe7d4d78a08a.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3076
    • C:\Users\Admin\AppData\Local\Temp\is-I5HC5.tmp\b1234e49f37f6fc2d6715ddb9c83df98849c426eba924dd2faa5fe7d4d78a08a.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-I5HC5.tmp\b1234e49f37f6fc2d6715ddb9c83df98849c426eba924dd2faa5fe7d4d78a08a.tmp" /SL5="$A002E,5285551,54272,C:\Users\Admin\AppData\Local\Temp\b1234e49f37f6fc2d6715ddb9c83df98849c426eba924dd2faa5fe7d4d78a08a.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
        "C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3868
      • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
        "C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4272
  • 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=4440 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3116

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
      Filesize

      3.9MB

      MD5

      3bd2bd459ae930bc3f20152c13902645

      SHA1

      3f354c8f115329029b528cd76c6632bcb4136819

      SHA256

      4891c316d865082fdb0d2f953e472ff93a89401c8ea28ad434807e08e00124ab

      SHA512

      2a71c5ab3f92c07b2ae12ff774a86dc92884f604a2321068f45a81b6a2ac18ab1e3928aa4f037105ecbcabf2095140418438fb1e8640d7bcb5579d8b0c6bff5c

    • C:\Users\Admin\AppData\Local\Temp\is-9G8AL.tmp\_isetup\_iscrypt.dll
      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-I5HC5.tmp\b1234e49f37f6fc2d6715ddb9c83df98849c426eba924dd2faa5fe7d4d78a08a.tmp
      Filesize

      680KB

      MD5

      6f995e2d6c8d0d1d03cb3afcd1deafaf

      SHA1

      0319dbd8c7b44067b82fed5272059757a526b3aa

      SHA256

      cc4530fee96cf6e821fa1dbed0c46ac5310c57d6336999e3f93d29f78376f9eb

      SHA512

      207b4d327be81e71152ce35cb272362e9862e6002a6c01e9e9df37578c3764ac1c8d19b19e8e3b751162724490f06fea10611d7becabaff3863af993a90db16d

    • memory/1304-70-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1304-7-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/3076-2-0x0000000000401000-0x000000000040B000-memory.dmp
      Filesize

      40KB

    • memory/3076-0-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/3076-69-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/3868-59-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/3868-60-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/3868-61-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/3868-65-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-75-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-95-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-68-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-77-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-79-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-82-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-85-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-87-0x0000000000B40000-0x0000000000BE2000-memory.dmp
      Filesize

      648KB

    • memory/4272-90-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-72-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-98-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-101-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-103-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-106-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-110-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB

    • memory/4272-112-0x0000000000B40000-0x0000000000BE2000-memory.dmp
      Filesize

      648KB

    • memory/4272-111-0x0000000000B40000-0x0000000000BE2000-memory.dmp
      Filesize

      648KB

    • memory/4272-116-0x0000000000400000-0x00000000007F2000-memory.dmp
      Filesize

      3.9MB