Analysis

  • max time kernel
    162s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:02

General

  • Target

    0579a348a804a3a640b9702089cd1d0edc965009ac740e708c1405a3647b29c1.exe

  • Size

    99KB

  • MD5

    ec5409f84fc61d729f8d99fd7c8c95b2

  • SHA1

    df35f299ee0b2c9fe9505b5c3a8fbef31e086373

  • SHA256

    0579a348a804a3a640b9702089cd1d0edc965009ac740e708c1405a3647b29c1

  • SHA512

    569ee36b878f2df9a36562f95afb0abda5aec74057ee11170135839363e8529dac6b02c13da6f88bcedcebd2041a278b278fec8167500c75eaf19401b935f7e4

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 49 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\0579a348a804a3a640b9702089cd1d0edc965009ac740e708c1405a3647b29c1.exe
    "C:\Users\Admin\AppData\Local\Temp\0579a348a804a3a640b9702089cd1d0edc965009ac740e708c1405a3647b29c1.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3512
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0579a348a804a3a640b9702089cd1d0edc965009ac740e708c1405a3647b29c1.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4076
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2544
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2640
  • 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:1448
  • 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:3972

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    ff4434c803b85fbc20229394246c4384

    SHA1

    76060e718f17bee2b73fd0414a8269dd614ffd9d

    SHA256

    3da55984762d8d5bdb7726e47813fb6b9d42e71b028eab09b925d236b83205ee

    SHA512

    c6848502c234ac2eb2933e1fa27cba578acf643434c7f6d1ed134ed834ccac41da9cc1274a949ec09ae1d502c6d622ec2ae7bd416664a7980afc0fbad47d8639

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

    ff4434c803b85fbc20229394246c4384

    SHA1

    76060e718f17bee2b73fd0414a8269dd614ffd9d

    SHA256

    3da55984762d8d5bdb7726e47813fb6b9d42e71b028eab09b925d236b83205ee

    SHA512

    c6848502c234ac2eb2933e1fa27cba578acf643434c7f6d1ed134ed834ccac41da9cc1274a949ec09ae1d502c6d622ec2ae7bd416664a7980afc0fbad47d8639