Analysis

  • max time kernel
    154s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:58

General

  • Target

    05a7896afd56149856a2ded8128b357e0cbee7bef787ef8b5c690d44ce8db10c.exe

  • Size

    80KB

  • MD5

    689ec98e6a5ca03126ff1ff57c3b4768

  • SHA1

    df315da766e503b341d62b3b06ff88267841defa

  • SHA256

    05a7896afd56149856a2ded8128b357e0cbee7bef787ef8b5c690d44ce8db10c

  • SHA512

    3603dd36ba14980951c448b6524df36253294e35dabfdd993937a9b7b67fda39185afeffce94469b8c9d58c80705dbadcbfdc9c4bb084d9b56d1874cdddb86c2

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 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\05a7896afd56149856a2ded8128b357e0cbee7bef787ef8b5c690d44ce8db10c.exe
    "C:\Users\Admin\AppData\Local\Temp\05a7896afd56149856a2ded8128b357e0cbee7bef787ef8b5c690d44ce8db10c.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3812
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2068
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\05a7896afd56149856a2ded8128b357e0cbee7bef787ef8b5c690d44ce8db10c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:820
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3796
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1148
  • 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:2376
  • 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:920

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    16dbc25e82514b91eafd447bd22f0c4f

    SHA1

    f010c587a1b43c4658bd47ecd095f568e5e8bc0f

    SHA256

    0d41f19b4e9d35e3ff283aa6e8f58d4ea36d725a1c10cf9c289700b22f1ffe65

    SHA512

    3cba0f6d877862b6647de0559cbda1f6a886a0c2f7933b297a422f6c56b7dcae3d77ecd7e6626f9c82c1d579f80acae0d5760cca002e77a169d04819827a57c6

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

    16dbc25e82514b91eafd447bd22f0c4f

    SHA1

    f010c587a1b43c4658bd47ecd095f568e5e8bc0f

    SHA256

    0d41f19b4e9d35e3ff283aa6e8f58d4ea36d725a1c10cf9c289700b22f1ffe65

    SHA512

    3cba0f6d877862b6647de0559cbda1f6a886a0c2f7933b297a422f6c56b7dcae3d77ecd7e6626f9c82c1d579f80acae0d5760cca002e77a169d04819827a57c6