Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:04

General

  • Target

    18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe

  • Size

    89KB

  • MD5

    1b876e836dcfc62e153162d081c8c2ca

  • SHA1

    7aab00368ee009729625c03caa234ce88a2d9627

  • SHA256

    18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090

  • SHA512

    3a2d24689fe20227c1c71c63e810de29995dcdadb7949b8ae463cc10edb9e21db2286538ff13a3babfd3c6ddc63d5fe6d900b970566c962ec47d7a1dd827e3dd

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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\18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe
    "C:\Users\Admin\AppData\Local\Temp\18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3316
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2640
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3632
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1020
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:864
  • 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:1268
  • 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:3640

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    d8e589fa4d75032d3558628aa9345d7e

    SHA1

    67526bfb7c786cdf7492b4f1c4fbc779f20f2241

    SHA256

    b9982890e4e51ad92897217e61b02af298105519df2cfba0c55edb30a5a3f6cb

    SHA512

    cb3dd8165eda2f9838c34020c6e32ba6d77189fdcf872355359af07a1ecb710e0332bcb9756fb1287d27e100cf1b834c30b5519ea02f67027585a9826a41c4b8

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

    MD5

    d8e589fa4d75032d3558628aa9345d7e

    SHA1

    67526bfb7c786cdf7492b4f1c4fbc779f20f2241

    SHA256

    b9982890e4e51ad92897217e61b02af298105519df2cfba0c55edb30a5a3f6cb

    SHA512

    cb3dd8165eda2f9838c34020c6e32ba6d77189fdcf872355359af07a1ecb710e0332bcb9756fb1287d27e100cf1b834c30b5519ea02f67027585a9826a41c4b8