Analysis

  • max time kernel
    163s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:24

General

  • Target

    047f1a7565e80db7fc18a6cdc4a9167d6ccb412f61f6623e009bd5d850f342d1.exe

  • Size

    58KB

  • MD5

    aef6f5b4546b416b2c21261fbf221e83

  • SHA1

    d0c1ec3495fc08406886187f6505b8042a00c98f

  • SHA256

    047f1a7565e80db7fc18a6cdc4a9167d6ccb412f61f6623e009bd5d850f342d1

  • SHA512

    333040bac4fd16828775a3dc351e4d81422ed81354ed23feb93ed6b3500d35a872e27c7a3ec98f3afb5042c584ad97cb953169a90ce4083e52bd72140d73ab1e

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 55 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\047f1a7565e80db7fc18a6cdc4a9167d6ccb412f61f6623e009bd5d850f342d1.exe
    "C:\Users\Admin\AppData\Local\Temp\047f1a7565e80db7fc18a6cdc4a9167d6ccb412f61f6623e009bd5d850f342d1.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3936
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\047f1a7565e80db7fc18a6cdc4a9167d6ccb412f61f6623e009bd5d850f342d1.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2676
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4068
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3700
  • 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:2128
  • 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:2112

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    8e2af41184813897d656447e4ae3cd63

    SHA1

    ce98756e932e3b2d5299767f95dfae0a8a77d0e8

    SHA256

    6887da7f5b1ebf51596c151b19563d5f826a6ffdf86ec3381da1140e19724894

    SHA512

    097f0d78ef7c82a95286ca5b77a4b458d15be90dbfbae3e8895e7bc0c8f9ace234d1f7cbcf8565bc411a2fd1e2ab628063e116a56853b9ff890a2bdffee3ab05

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

    8e2af41184813897d656447e4ae3cd63

    SHA1

    ce98756e932e3b2d5299767f95dfae0a8a77d0e8

    SHA256

    6887da7f5b1ebf51596c151b19563d5f826a6ffdf86ec3381da1140e19724894

    SHA512

    097f0d78ef7c82a95286ca5b77a4b458d15be90dbfbae3e8895e7bc0c8f9ace234d1f7cbcf8565bc411a2fd1e2ab628063e116a56853b9ff890a2bdffee3ab05