Analysis

  • max time kernel
    164s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:44

General

  • Target

    0f0f9c371839e65d2d6e6d9c2d8dda3e5704a5fbd4a9db012f766ff1e778a628.exe

  • Size

    58KB

  • MD5

    4e0d7fd491b0563794c1e7350476cd0c

  • SHA1

    7769ab496149f16f2d48152af83d23b31590d3d2

  • SHA256

    0f0f9c371839e65d2d6e6d9c2d8dda3e5704a5fbd4a9db012f766ff1e778a628

  • SHA512

    b36efebcbc7f6cb178cf2d9727c2ecfec47f565a397d37d3292096b6c755c7c1dc747af57a64956c0c607ec748f6ee8042b0958a79277204f44893cbf97c0152

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 54 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\0f0f9c371839e65d2d6e6d9c2d8dda3e5704a5fbd4a9db012f766ff1e778a628.exe
    "C:\Users\Admin\AppData\Local\Temp\0f0f9c371839e65d2d6e6d9c2d8dda3e5704a5fbd4a9db012f766ff1e778a628.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2868
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0f0f9c371839e65d2d6e6d9c2d8dda3e5704a5fbd4a9db012f766ff1e778a628.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3428
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1368
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3384
  • 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:1144
  • 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:2428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    34811761c041340df55a0c340b8228ad

    SHA1

    fb51f16460c8d095e063b937d8214c36a7fe8a47

    SHA256

    f5ebdb04af1f2cd6d08d426afbd027a286fe0a3ba4408b8cf93afd92f9e838c3

    SHA512

    8acbd9f96df725041bd1732c1bab38f152d5ae0baccfc2906c5108647efc40a22fa80310fcd42cdc2d9774677c4e744884068289a8fc319958d1d7b2b0c9b967

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

    MD5

    34811761c041340df55a0c340b8228ad

    SHA1

    fb51f16460c8d095e063b937d8214c36a7fe8a47

    SHA256

    f5ebdb04af1f2cd6d08d426afbd027a286fe0a3ba4408b8cf93afd92f9e838c3

    SHA512

    8acbd9f96df725041bd1732c1bab38f152d5ae0baccfc2906c5108647efc40a22fa80310fcd42cdc2d9774677c4e744884068289a8fc319958d1d7b2b0c9b967