Analysis

  • max time kernel
    150s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:26

General

  • Target

    0b09d8a713b357ed43b77ed8f5c1725a60647d1fe457b865a8d82bb08fe26545.exe

  • Size

    99KB

  • MD5

    4a0faac441ef5c37fa02498b8575ce67

  • SHA1

    fc94e822ab312afc652fd98a32d572f0794306a1

  • SHA256

    0b09d8a713b357ed43b77ed8f5c1725a60647d1fe457b865a8d82bb08fe26545

  • SHA512

    bbbd72c50b672118476729c93584dc9f6daf9999c2849ef08bdc57c8b0a4e45d480a2c6c677924a82a98e2cb0013b0eb1f7143070c06cb2fd6a66df4794055e4

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.

  • 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 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\0b09d8a713b357ed43b77ed8f5c1725a60647d1fe457b865a8d82bb08fe26545.exe
    "C:\Users\Admin\AppData\Local\Temp\0b09d8a713b357ed43b77ed8f5c1725a60647d1fe457b865a8d82bb08fe26545.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3380
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2204
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0b09d8a713b357ed43b77ed8f5c1725a60647d1fe457b865a8d82bb08fe26545.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:544
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1172
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:900
  • 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:3964
  • 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:4076

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    c6063f40854ed9347182a9a96c9d64d6

    SHA1

    579157cff380708a77e318407f0e1fd19951a398

    SHA256

    31a0b961a23efc4b3688d75cfe35f7ebe220af82775da4cf10fbbf6e7997f5af

    SHA512

    35e331fc4522bba73b33e84e790fcd377c8dcbc9df2dc7d3f15fb03b0c04a831e18f687b7a8a9ab18e7012204b323e74e0334d4e0ec563f184836555e92b9765

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

    c6063f40854ed9347182a9a96c9d64d6

    SHA1

    579157cff380708a77e318407f0e1fd19951a398

    SHA256

    31a0b961a23efc4b3688d75cfe35f7ebe220af82775da4cf10fbbf6e7997f5af

    SHA512

    35e331fc4522bba73b33e84e790fcd377c8dcbc9df2dc7d3f15fb03b0c04a831e18f687b7a8a9ab18e7012204b323e74e0334d4e0ec563f184836555e92b9765