Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:27

General

  • Target

    0a0cdbe359ab06d40e4572ffb79646047b51b2dd4745dfe011f4c7e67fa0d993.exe

  • Size

    191KB

  • MD5

    bcc1a1c4e2973c6187e5ab70c38e4ec6

  • SHA1

    41a3baaf24e4f0b61894a0fec064bcbe4dbe9e98

  • SHA256

    0a0cdbe359ab06d40e4572ffb79646047b51b2dd4745dfe011f4c7e67fa0d993

  • SHA512

    c2bc65355e37216676fcda1d8800abfe62929af4601fc461312ed70b504350120e2d7b9aebc835dbbe5d1ee1ae20d343d94320bc494e13df3152d06a2bf61e21

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 51 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\0a0cdbe359ab06d40e4572ffb79646047b51b2dd4745dfe011f4c7e67fa0d993.exe
    "C:\Users\Admin\AppData\Local\Temp\0a0cdbe359ab06d40e4572ffb79646047b51b2dd4745dfe011f4c7e67fa0d993.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1840
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0a0cdbe359ab06d40e4572ffb79646047b51b2dd4745dfe011f4c7e67fa0d993.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1680
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1212
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3708
  • 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:1724
  • 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:2520

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    982bd307afd32b660edd62a9cce6a85b

    SHA1

    a88d2af1b19902426517bfe0db904feaf81a8021

    SHA256

    8fe321269393fb5416ad1c4b8db574be6209144fd79ca07b181a56f7ecab87dc

    SHA512

    ded8d2d23db64cf785ec47cd3732a50a9131dfdcf09b071fb6be9239471fd9d29afebf8a1d7041f491391defd77a95a328b91d57ba2d36393fdefc95a2897659

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

    982bd307afd32b660edd62a9cce6a85b

    SHA1

    a88d2af1b19902426517bfe0db904feaf81a8021

    SHA256

    8fe321269393fb5416ad1c4b8db574be6209144fd79ca07b181a56f7ecab87dc

    SHA512

    ded8d2d23db64cf785ec47cd3732a50a9131dfdcf09b071fb6be9239471fd9d29afebf8a1d7041f491391defd77a95a328b91d57ba2d36393fdefc95a2897659