Analysis

  • max time kernel
    163s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2024 10:00

General

  • Target

    3c8f6cfa9f10104a5187a1c026df2393.exe

  • Size

    68KB

  • MD5

    3c8f6cfa9f10104a5187a1c026df2393

  • SHA1

    67bcbe17f9e37c151e9a42ad8a1f357c0a033c51

  • SHA256

    9aadd5825124d75c1e4fb4090c0062f8e1b2ad239f606ead39bf483e6eebdcac

  • SHA512

    008c1dcdbc4d46820ee8b1fa89f4b94bb5fb3ff79e2f0d72a6fee02c10cffcc73882f3cc991d03c04265e737a780d55817719f5643ec3ef9525ffef2585fc167

  • SSDEEP

    768:NjcVhWSr8szyJBXUkyzf0/wuArfYwOM1H2dtcPVON1ykhcTga4yfKbNgzdr5qglD:i4lJBXpd/nArfY3M+Py/Cc3ValvnRCj

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 5 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c8f6cfa9f10104a5187a1c026df2393.exe
    "C:\Users\Admin\AppData\Local\Temp\3c8f6cfa9f10104a5187a1c026df2393.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Users\Admin\AppData\Local\Temp\3c8f6cfa9f10104a5187a1c026df2393.exe
      "C:\Users\Admin\AppData\Local\Temp\3c8f6cfa9f10104a5187a1c026df2393.exe"
      2⤵
      • Modifies firewall policy service
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1028
      • C:\Users\Admin\M-10-5364-2978-3464\winmgr.exe
        "C:\Users\Admin\M-10-5364-2978-3464\winmgr.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:4064
        • C:\Users\Admin\M-10-5364-2978-3464\winmgr.exe
          "C:\Users\Admin\M-10-5364-2978-3464\winmgr.exe"
          4⤵
          • Executes dropped EXE
          PID:3596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\M-10-5364-2978-3464\winmgr.exe

    Filesize

    68KB

    MD5

    3c8f6cfa9f10104a5187a1c026df2393

    SHA1

    67bcbe17f9e37c151e9a42ad8a1f357c0a033c51

    SHA256

    9aadd5825124d75c1e4fb4090c0062f8e1b2ad239f606ead39bf483e6eebdcac

    SHA512

    008c1dcdbc4d46820ee8b1fa89f4b94bb5fb3ff79e2f0d72a6fee02c10cffcc73882f3cc991d03c04265e737a780d55817719f5643ec3ef9525ffef2585fc167

  • memory/1028-1-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/1028-4-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/1028-6-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/3596-51-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/3596-52-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/4064-49-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5004-0-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5004-2-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB