Analysis

  • max time kernel
    144s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:14

General

  • Target

    07c888c27edeafc9b3fba98eb30620b81dcb3a904f178e2fcfa1a7881d93f5fb.exe

  • Size

    60KB

  • MD5

    7c53376faeaa9f2b0e1ff98b5d6867e2

  • SHA1

    dc7749eebbcd5943913436d5cab1d1afffae23ce

  • SHA256

    07c888c27edeafc9b3fba98eb30620b81dcb3a904f178e2fcfa1a7881d93f5fb

  • SHA512

    0a94f36e7a9df284eea67aa897e4944b682ad4e162a85ba36d4e6811f2c610398c6af63f1b4b8a97e24dcba7d1abcb2d867697404d91ee3de0c6bd7a9dc74ff2

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 48 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\07c888c27edeafc9b3fba98eb30620b81dcb3a904f178e2fcfa1a7881d93f5fb.exe
    "C:\Users\Admin\AppData\Local\Temp\07c888c27edeafc9b3fba98eb30620b81dcb3a904f178e2fcfa1a7881d93f5fb.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4032
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3288
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\07c888c27edeafc9b3fba98eb30620b81dcb3a904f178e2fcfa1a7881d93f5fb.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1036
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3576
  • 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:3100
  • 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:4016

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    3a974ede8f3ead954f4431c3f2baf9a8

    SHA1

    3d0b5563ab9e306a35bf3c3a11179e6ad00fa8a5

    SHA256

    db41c929705b635285fa1c6aa7a685f70d8343e404e65698c748d296a2747677

    SHA512

    16658b1d7ed5ff5768438fb4aec826afd9f1866b7de31c2676a0202812e6cb65e7ca692cfb07995b425fcb79e2e61b7a12fa86a265bc51bbcae3a7e1b350cd28

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

    3a974ede8f3ead954f4431c3f2baf9a8

    SHA1

    3d0b5563ab9e306a35bf3c3a11179e6ad00fa8a5

    SHA256

    db41c929705b635285fa1c6aa7a685f70d8343e404e65698c748d296a2747677

    SHA512

    16658b1d7ed5ff5768438fb4aec826afd9f1866b7de31c2676a0202812e6cb65e7ca692cfb07995b425fcb79e2e61b7a12fa86a265bc51bbcae3a7e1b350cd28