Analysis

  • max time kernel
    173s
  • max time network
    186s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:32

General

  • Target

    0d4e2a0ee9ebe65330ec3bb38be8f0ac5ebc362158d7f6dd130453e210cfb0c4.exe

  • Size

    79KB

  • MD5

    b8d649fbca202c563d22de6cce14959b

  • SHA1

    841b226318f73723e58a1ab7756168e75da3ddd3

  • SHA256

    0d4e2a0ee9ebe65330ec3bb38be8f0ac5ebc362158d7f6dd130453e210cfb0c4

  • SHA512

    6beb14a2926ad4eeff4527efc131a40a862255a47289e6d4b3090611a7321d9263148c933d9577489cfc528c417bd3f8db7854202c5c75eee0eb74eea891b9c0

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\0d4e2a0ee9ebe65330ec3bb38be8f0ac5ebc362158d7f6dd130453e210cfb0c4.exe
    "C:\Users\Admin\AppData\Local\Temp\0d4e2a0ee9ebe65330ec3bb38be8f0ac5ebc362158d7f6dd130453e210cfb0c4.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:780
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0d4e2a0ee9ebe65330ec3bb38be8f0ac5ebc362158d7f6dd130453e210cfb0c4.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2996
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3616
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:4092
  • 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:1940
  • 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:3940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    853e9beb28fd0a2cbc1b187e8453705c

    SHA1

    23e8b93f7b407a911381eb75a2a2080aa70ccb91

    SHA256

    8bfce06cf2988dcb58341754a1c519c53ff22108b054d5db0ee957d6608ad3f8

    SHA512

    c02a9b9f2d6e46681e7465e09b8bc2a1adf23ecd7c492adaaa4dca264884789c12f78be7f882499b11b894067ff53eff429282a33f5822b644d48f7f36289a30

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

    MD5

    853e9beb28fd0a2cbc1b187e8453705c

    SHA1

    23e8b93f7b407a911381eb75a2a2080aa70ccb91

    SHA256

    8bfce06cf2988dcb58341754a1c519c53ff22108b054d5db0ee957d6608ad3f8

    SHA512

    c02a9b9f2d6e46681e7465e09b8bc2a1adf23ecd7c492adaaa4dca264884789c12f78be7f882499b11b894067ff53eff429282a33f5822b644d48f7f36289a30