Analysis

  • max time kernel
    173s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:00

General

  • Target

    0bfce0c49bc232490835d6a9359b951278bf968a794b0d46ac6e178d7eb3756e.exe

  • Size

    60KB

  • MD5

    476e22009f28d2d531d13d4fa12efa59

  • SHA1

    c15681556068a4c42081f08a50b52cca5a164ddc

  • SHA256

    0bfce0c49bc232490835d6a9359b951278bf968a794b0d46ac6e178d7eb3756e

  • SHA512

    5e032487f51dd016e6b50998c464bea06b581ea006de2eb57d715b2a358d6e0980cc740db191a8621daee53b4ffd0d352f847b0cad5a5fd317e2ed1820f9f477

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 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\0bfce0c49bc232490835d6a9359b951278bf968a794b0d46ac6e178d7eb3756e.exe
    "C:\Users\Admin\AppData\Local\Temp\0bfce0c49bc232490835d6a9359b951278bf968a794b0d46ac6e178d7eb3756e.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3824
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:216
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0bfce0c49bc232490835d6a9359b951278bf968a794b0d46ac6e178d7eb3756e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3884
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4012
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2108
  • 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:876
  • 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:2808

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    103bf5e3c4890705580c57838810a32d

    SHA1

    6c53c9e3b978dc8c77b4971c4f49096405dfa82c

    SHA256

    c9c4e451b7f7c16d9c39f021682e6f462354aa0b4cf1ca2288276287f8e16e48

    SHA512

    f1ede1513e1a753f805774ea90f4ef4e15bc4216545536d8fa27e4e308ca39ea4a0120d6de43ae13fb856ee63670ec5bda0106050fca0c8151abda00b4944edf

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

    MD5

    103bf5e3c4890705580c57838810a32d

    SHA1

    6c53c9e3b978dc8c77b4971c4f49096405dfa82c

    SHA256

    c9c4e451b7f7c16d9c39f021682e6f462354aa0b4cf1ca2288276287f8e16e48

    SHA512

    f1ede1513e1a753f805774ea90f4ef4e15bc4216545536d8fa27e4e308ca39ea4a0120d6de43ae13fb856ee63670ec5bda0106050fca0c8151abda00b4944edf