Analysis

  • max time kernel
    170s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:34

General

  • Target

    040e504f41f149e15320f1f456cc012c9d4422d4c2e949582a5240b8bc3a4781.exe

  • Size

    60KB

  • MD5

    118b606dd47079e0a137370ed96e182d

  • SHA1

    22770e146365e45b409156e4cd32901d7c6f8444

  • SHA256

    040e504f41f149e15320f1f456cc012c9d4422d4c2e949582a5240b8bc3a4781

  • SHA512

    4ba76ab32f2a143cc699ff80c530697cc4cf258c2b090a5fe7ff5c3ecc83c7ce1e361a10a3937eb1c09886cafa58cac12451fcb5faae9d67395a947492f8c78e

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\040e504f41f149e15320f1f456cc012c9d4422d4c2e949582a5240b8bc3a4781.exe
    "C:\Users\Admin\AppData\Local\Temp\040e504f41f149e15320f1f456cc012c9d4422d4c2e949582a5240b8bc3a4781.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1140
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\040e504f41f149e15320f1f456cc012c9d4422d4c2e949582a5240b8bc3a4781.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2112
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2824
  • 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:3364
  • 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:3044

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    844d120f4b82ef4aaf623cc69b2e1235

    SHA1

    ce34d73100460933cc732012fa62b788adc7a3bb

    SHA256

    410edda3ce3dedd8cd0bddd89ea3b66c1c11bf9d0fb38cbd5a72a0a7724b2869

    SHA512

    8382a048c32328815aee84a11d095cb60bac8b1f907a2a33929567849194583f839b5babdfa7a13f052c88632263259e5e43c15f7aceefc83e8b2f961ed474d7

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

    844d120f4b82ef4aaf623cc69b2e1235

    SHA1

    ce34d73100460933cc732012fa62b788adc7a3bb

    SHA256

    410edda3ce3dedd8cd0bddd89ea3b66c1c11bf9d0fb38cbd5a72a0a7724b2869

    SHA512

    8382a048c32328815aee84a11d095cb60bac8b1f907a2a33929567849194583f839b5babdfa7a13f052c88632263259e5e43c15f7aceefc83e8b2f961ed474d7