Analysis

  • max time kernel
    126s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    12-02-2022 05:16

General

  • Target

    133cbcbdfbadd226c186ee60bcd432877941e5a70356489ce2f02004d9a1c053.exe

  • Size

    58KB

  • MD5

    f414263b3e962ced7fc537bd5e2c8539

  • SHA1

    a1075633247b627bbac8fff8deca76f7203f1091

  • SHA256

    133cbcbdfbadd226c186ee60bcd432877941e5a70356489ce2f02004d9a1c053

  • SHA512

    c75d18ac17a3f4c687b4de1fac0e9212f055101bfc3fe5f714efbf17de47bd67d7fc2549bfed0e6b0a66fc890edab590fc13d4d9547d7e365f93bb80273593dc

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 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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\133cbcbdfbadd226c186ee60bcd432877941e5a70356489ce2f02004d9a1c053.exe
    "C:\Users\Admin\AppData\Local\Temp\133cbcbdfbadd226c186ee60bcd432877941e5a70356489ce2f02004d9a1c053.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1476
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\133cbcbdfbadd226c186ee60bcd432877941e5a70356489ce2f02004d9a1c053.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4276
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3416
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3160
  • 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:3476

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    74b9a863d84fda0172762d11bf34b622

    SHA1

    3a7ebd589ec8978a5975b7006d9e079be35be89a

    SHA256

    17e1f9318dc0b36e286127a3545b304e1377472190f4721c103335fe5180f2d3

    SHA512

    1b505b9005320ff530d10c6e470c729e0d806c5f611f3ef412553a39fdc37a273ac1d6a998df56b38205a77ce6b516b537170d0c401e7966d82ca3209529f468

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

    MD5

    74b9a863d84fda0172762d11bf34b622

    SHA1

    3a7ebd589ec8978a5975b7006d9e079be35be89a

    SHA256

    17e1f9318dc0b36e286127a3545b304e1377472190f4721c103335fe5180f2d3

    SHA512

    1b505b9005320ff530d10c6e470c729e0d806c5f611f3ef412553a39fdc37a273ac1d6a998df56b38205a77ce6b516b537170d0c401e7966d82ca3209529f468

  • memory/3160-132-0x000001F773B60000-0x000001F773B70000-memory.dmp

    Filesize

    64KB

  • memory/3160-133-0x000001F774120000-0x000001F774130000-memory.dmp

    Filesize

    64KB

  • memory/3160-134-0x000001F7767B0000-0x000001F7767B4000-memory.dmp

    Filesize

    16KB