Analysis

  • max time kernel
    191s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:12

General

  • Target

    050138a9d7f9e33dd57fb70f61aeb66ae68d950c3f851e62567adb146a8a6c3a.exe

  • Size

    58KB

  • MD5

    0758dfc725cb094cd9801b0c83de0561

  • SHA1

    cf980ea496395384722c7ca34b302aec485c2dde

  • SHA256

    050138a9d7f9e33dd57fb70f61aeb66ae68d950c3f851e62567adb146a8a6c3a

  • SHA512

    2b131b3b19765fe44b44ed6604f5114636aa5d1cb34826b1ed480664c835bb8b7ed681b9be5c1ce3026c1739e785c32ce0f110844d4a816b8829a135055e35d2

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.

  • Modifies data under HKEY_USERS 56 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\050138a9d7f9e33dd57fb70f61aeb66ae68d950c3f851e62567adb146a8a6c3a.exe
    "C:\Users\Admin\AppData\Local\Temp\050138a9d7f9e33dd57fb70f61aeb66ae68d950c3f851e62567adb146a8a6c3a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3268
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\050138a9d7f9e33dd57fb70f61aeb66ae68d950c3f851e62567adb146a8a6c3a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3796
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3996
  • 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:544
  • 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:4016

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    cb611ebfcd6b8af8ee6dcbad767612f0

    SHA1

    a2bc262f64e10cbebed1f6f138715b2fa559afd9

    SHA256

    7c0b1475d179dc48311858d2237644867de456efda8d3075f418ab5317a8c8bd

    SHA512

    2915a5ae2f3de2af5555b734ff259c85275282744e9ff5c6abb3d6332230550369872d421c8e700497d6cbb5b324153b55cac9711ed21270314224f8921ced8c

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

    cb611ebfcd6b8af8ee6dcbad767612f0

    SHA1

    a2bc262f64e10cbebed1f6f138715b2fa559afd9

    SHA256

    7c0b1475d179dc48311858d2237644867de456efda8d3075f418ab5317a8c8bd

    SHA512

    2915a5ae2f3de2af5555b734ff259c85275282744e9ff5c6abb3d6332230550369872d421c8e700497d6cbb5b324153b55cac9711ed21270314224f8921ced8c