Analysis

  • max time kernel
    173s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:46

General

  • Target

    1489a64b5a79b293a660c80da4b8e2d354233ea3df6ffd125a940124fd0cf6fb.exe

  • Size

    92KB

  • MD5

    6259c7a8e37859f80981085ced06140d

  • SHA1

    405940f0a3473d8bae265f02ec304b016f960dbb

  • SHA256

    1489a64b5a79b293a660c80da4b8e2d354233ea3df6ffd125a940124fd0cf6fb

  • SHA512

    10daa6990e948c0cb3d4e8d3cf3b0bb6329318b847c1d7d25b546f36526330fa3386be58ab84d89f9877b938cc0aac8cf83369db1123897451fdb8bf28ae9e74

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\1489a64b5a79b293a660c80da4b8e2d354233ea3df6ffd125a940124fd0cf6fb.exe
    "C:\Users\Admin\AppData\Local\Temp\1489a64b5a79b293a660c80da4b8e2d354233ea3df6ffd125a940124fd0cf6fb.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2184
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1489a64b5a79b293a660c80da4b8e2d354233ea3df6ffd125a940124fd0cf6fb.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3444
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3768
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:564
  • 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:3448
  • 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:1976

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    906da0b362020cdffc98ffb18b8dd666

    SHA1

    e7349799ca5ed6d052f6555c57abde61bd10dbee

    SHA256

    6522446948ceba2a59657a84de9500f038b479f21a26aa6833c11cec8e531160

    SHA512

    8e4ddb540cb6e9595281f27dbf0550586a7019459a853efda208a670a6a07f1114febecb8e2d17778ef3fbb576508b9f28e3ba5d8d191f8bfcbebfe69845f0a9

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

    MD5

    906da0b362020cdffc98ffb18b8dd666

    SHA1

    e7349799ca5ed6d052f6555c57abde61bd10dbee

    SHA256

    6522446948ceba2a59657a84de9500f038b479f21a26aa6833c11cec8e531160

    SHA512

    8e4ddb540cb6e9595281f27dbf0550586a7019459a853efda208a670a6a07f1114febecb8e2d17778ef3fbb576508b9f28e3ba5d8d191f8bfcbebfe69845f0a9