Analysis

  • max time kernel
    153s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:58

General

  • Target

    05a0706663097e8362dcc1cd4acb369d5c6cd93412adaa2c4aad722d26de2220.exe

  • Size

    191KB

  • MD5

    fd05e7553d7d1828a306af4844e8d7e9

  • SHA1

    e66c0e9f54668128f0ad751035f6c9f8f698702a

  • SHA256

    05a0706663097e8362dcc1cd4acb369d5c6cd93412adaa2c4aad722d26de2220

  • SHA512

    782213646b386c8d1dd6ebfed1feb8e0fe6357a934d7161044adaaed26ea17b0f055c6a023bcacc29ebd8190d55504e6dd07d4bfcee1164dc7cb2c869091b27e

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 55 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\05a0706663097e8362dcc1cd4acb369d5c6cd93412adaa2c4aad722d26de2220.exe
    "C:\Users\Admin\AppData\Local\Temp\05a0706663097e8362dcc1cd4acb369d5c6cd93412adaa2c4aad722d26de2220.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:4020
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\05a0706663097e8362dcc1cd4acb369d5c6cd93412adaa2c4aad722d26de2220.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3532
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3340
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2996
  • 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:1360
  • 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:3512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    5c4fb587296d6cd809bc4ce7fea549a6

    SHA1

    d56eb42e2088c0c3fad0782896ddb0f4c9f668a1

    SHA256

    a99abdb0839e932a819197552071fb22580d4542d097930a885432c9830164e6

    SHA512

    359ba260089223c328557cbe63c4ebe128a07da6591c7e7319413a626c73b25af942675311d0041bb28f74e8c632c3bede1aab4dff37e64f2a05f13d1a1aca12

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

    5c4fb587296d6cd809bc4ce7fea549a6

    SHA1

    d56eb42e2088c0c3fad0782896ddb0f4c9f668a1

    SHA256

    a99abdb0839e932a819197552071fb22580d4542d097930a885432c9830164e6

    SHA512

    359ba260089223c328557cbe63c4ebe128a07da6591c7e7319413a626c73b25af942675311d0041bb28f74e8c632c3bede1aab4dff37e64f2a05f13d1a1aca12