Analysis

  • max time kernel
    155s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 12:29

General

  • Target

    015ed1eb5dd4c5c85609a2f1586d7fd4f42d5d0d5f98f9ca13bbd37f59374739.exe

  • Size

    60KB

  • MD5

    c66c0fe981c0a0de146d3b7c47f1a97d

  • SHA1

    5e875ee443e49e5b33e742d08b6497796f2cea23

  • SHA256

    015ed1eb5dd4c5c85609a2f1586d7fd4f42d5d0d5f98f9ca13bbd37f59374739

  • SHA512

    8ef75421a3fbce15dec44e3c88080d5a3f4428fbe8f72c1f0d7f3f39bc017ff9fb4c4b62fea0198e897f949d7bf525ce96cf59a995a88ad6a49a9d441b0ccb5a

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.

  • 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\015ed1eb5dd4c5c85609a2f1586d7fd4f42d5d0d5f98f9ca13bbd37f59374739.exe
    "C:\Users\Admin\AppData\Local\Temp\015ed1eb5dd4c5c85609a2f1586d7fd4f42d5d0d5f98f9ca13bbd37f59374739.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2572
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\015ed1eb5dd4c5c85609a2f1586d7fd4f42d5d0d5f98f9ca13bbd37f59374739.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3292
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:972
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2236
  • 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:972
  • 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:2992

Network

MITRE ATT&CK Enterprise v6

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