Analysis

  • max time kernel
    111s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-09-2024 08:42

General

  • Target

    f51e2fc29948b0d9b8dea19834f817d0N.exe

  • Size

    63KB

  • MD5

    f51e2fc29948b0d9b8dea19834f817d0

  • SHA1

    7a3ed6da5841f309380e25fd190585a766c5f492

  • SHA256

    05e590c54a87adf25cfc93f5db22b06f4c6ba762d661852dac562299a214b716

  • SHA512

    c9ee9658c70ba2795294c4181a64cf8bf7a55db24d6abfe31277e514fb7c481ec70afd7f9241f569ff3e8c08ec1c0b85e3b086a4e4f8eb910ab64cba8322eebe

  • SSDEEP

    1536:zoxBP0D61Oj3+5FdOa52C8pdo95j6hZ2MzNDCkrf:0PPUj3+5FMIn8To94wa7f

Malware Config

Extracted

Family

sakula

C2

www.polarroute.com

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula payload 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f51e2fc29948b0d9b8dea19834f817d0N.exe
    "C:\Users\Admin\AppData\Local\Temp\f51e2fc29948b0d9b8dea19834f817d0N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4764
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1484
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\f51e2fc29948b0d9b8dea19834f817d0N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:992
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1392

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    b04d2d35a565fdd75e1ca2bbf65051a9

    SHA1

    82112ca348951e51d4a9b971a1e1690f45e20dee

    SHA256

    8bc139dd1d7d2f2a72319700f967af825372ea78a6bb977e48e5f6dea5a89565

    SHA512

    5664d2044899d6f93d7fc3bdfb4388fea869e4c9dc5139e9023a6471478a1a09d7957c581b5cbc729f48c4fc1b1b06c375ea191a9c9d54d5bf172984ce04987d

  • memory/1484-7-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1484-18-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4764-0-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4764-5-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4764-12-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB