Analysis

  • max time kernel
    167s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:15

General

  • Target

    07be3725f52b87eb1ab5b1e85b207e0504ef64d6cd2048173f42ec152ba2d170.exe

  • Size

    80KB

  • MD5

    0248019d99075dc038159305240489cd

  • SHA1

    2c44dad3fec3b6cd0bfc33c01f596945339e2b78

  • SHA256

    07be3725f52b87eb1ab5b1e85b207e0504ef64d6cd2048173f42ec152ba2d170

  • SHA512

    bdd2f9db47010e7effbf335b7774c2ee45ab84d77b36132785852c83e7463fb7776a249511ed3f0c01627aca1de41c5cc8b432be2f82b5565be5ea3c300cc5bf

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 49 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\07be3725f52b87eb1ab5b1e85b207e0504ef64d6cd2048173f42ec152ba2d170.exe
    "C:\Users\Admin\AppData\Local\Temp\07be3725f52b87eb1ab5b1e85b207e0504ef64d6cd2048173f42ec152ba2d170.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1016
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3520
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\07be3725f52b87eb1ab5b1e85b207e0504ef64d6cd2048173f42ec152ba2d170.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3988
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:4004
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3124

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    73e636b58a0493e1b46fd6f28f73c85d

    SHA1

    fc2845fd056e07a795f8aa3382dd6ad50db94b3b

    SHA256

    5e76703937eadafa262065e3b4c559a8125d6b3874e206deb9191844a19fb843

    SHA512

    8cd264890c8fa614067c8aa5693beb03d59db60e5c878fd6224c807240c84d9ae6aebad67e11d4af1bee0c792dfda738faf2df7dc969f3b6c4202edb57b1dd5c

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    73e636b58a0493e1b46fd6f28f73c85d

    SHA1

    fc2845fd056e07a795f8aa3382dd6ad50db94b3b

    SHA256

    5e76703937eadafa262065e3b4c559a8125d6b3874e206deb9191844a19fb843

    SHA512

    8cd264890c8fa614067c8aa5693beb03d59db60e5c878fd6224c807240c84d9ae6aebad67e11d4af1bee0c792dfda738faf2df7dc969f3b6c4202edb57b1dd5c