Analysis

  • max time kernel
    166s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:00

General

  • Target

    0ed6640ae57e9e0457802c9502942517231e32aae4718bbc5ddb1ee8fdbd46ba.exe

  • Size

    150KB

  • MD5

    ac229076b9304fc1967dc0d49e09aed3

  • SHA1

    3ebb103c8049d9d27a174161c74633beaccfe3f5

  • SHA256

    0ed6640ae57e9e0457802c9502942517231e32aae4718bbc5ddb1ee8fdbd46ba

  • SHA512

    2986059962da6ceec6eb94e8d8382cd48363fd4a45201896b42ba0c04ad5436fbd32e2a3824eb6123fa23a1ade5bfacbc1f2120f5ff1a46d4dd89b4efcb4003f

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\0ed6640ae57e9e0457802c9502942517231e32aae4718bbc5ddb1ee8fdbd46ba.exe
    "C:\Users\Admin\AppData\Local\Temp\0ed6640ae57e9e0457802c9502942517231e32aae4718bbc5ddb1ee8fdbd46ba.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1068
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0ed6640ae57e9e0457802c9502942517231e32aae4718bbc5ddb1ee8fdbd46ba.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:856
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:864
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:928
  • 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:2488
  • 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:540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    9b589cb29cb579c360493b2901eca808

    SHA1

    97f1420957de25aa2abd4d4a7b8b57fa4c71c7b5

    SHA256

    b3ec35d1d4f505ce60bcfd6297131978f212210d4b8e11e9bd9403bb27f104ad

    SHA512

    e03be9eff3099c3309e9611e44b8320131e06d6b2ccd2a21c0159ff7bd8cffe6bdd96d9edc0c231c586d02287e0050f62e22cce5b3d1d99144aadd49f911a142

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

    MD5

    9b589cb29cb579c360493b2901eca808

    SHA1

    97f1420957de25aa2abd4d4a7b8b57fa4c71c7b5

    SHA256

    b3ec35d1d4f505ce60bcfd6297131978f212210d4b8e11e9bd9403bb27f104ad

    SHA512

    e03be9eff3099c3309e9611e44b8320131e06d6b2ccd2a21c0159ff7bd8cffe6bdd96d9edc0c231c586d02287e0050f62e22cce5b3d1d99144aadd49f911a142