Analysis

  • max time kernel
    158s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:46

General

  • Target

    0f080000eaa8b1a941a1789433be97739ee1a13966627cbddac53f651649ee38.exe

  • Size

    101KB

  • MD5

    28b122a373ba533fb0141b9f51f1463a

  • SHA1

    88070fb9a1a9c3e6e6f72de6a4267c7b4c6912f4

  • SHA256

    0f080000eaa8b1a941a1789433be97739ee1a13966627cbddac53f651649ee38

  • SHA512

    ff8dfbc404ccbfbebb94da40cfc4b8e40b1d01620478b80a09838a73e0beaca85cdafcca699203a240e3bca79ef311a7517fbeefe618c847a5635b3efd8ad584

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 53 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\0f080000eaa8b1a941a1789433be97739ee1a13966627cbddac53f651649ee38.exe
    "C:\Users\Admin\AppData\Local\Temp\0f080000eaa8b1a941a1789433be97739ee1a13966627cbddac53f651649ee38.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3764
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0f080000eaa8b1a941a1789433be97739ee1a13966627cbddac53f651649ee38.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3952
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3168
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2376
  • 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:2936
  • 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:3296

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    df2732374342e23bd7fdb9639e24c731

    SHA1

    92417dd8dff1ebb77969606d7824c5ae2ef92e50

    SHA256

    c5799a2d465a99e64ad2cd2df143486fcf34631770d4cacfab020350d1a77721

    SHA512

    072343e4dcbb9fb2fa4a97e2da9d4eb003617bfb34ab3183c75378b1e909ddb2d1195b79b2ad2c5fd6454b6c88cc49f4c8282fae2b722befba3e5a12fe842982

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

    MD5

    df2732374342e23bd7fdb9639e24c731

    SHA1

    92417dd8dff1ebb77969606d7824c5ae2ef92e50

    SHA256

    c5799a2d465a99e64ad2cd2df143486fcf34631770d4cacfab020350d1a77721

    SHA512

    072343e4dcbb9fb2fa4a97e2da9d4eb003617bfb34ab3183c75378b1e909ddb2d1195b79b2ad2c5fd6454b6c88cc49f4c8282fae2b722befba3e5a12fe842982