Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/03/2025, 02:51

General

  • Target

    2025.scr.exe

  • Size

    211KB

  • MD5

    c104dce7ac77b6154e5235e8bf0ecd19

  • SHA1

    64d2165f1ecb6c68358592c65e29caf68937386a

  • SHA256

    e41b8ea141681fb21c0a4bcf6af20529249e1637a3af9f46a68899e8e39f1b86

  • SHA512

    249d4f5e8c3475a9bb4a735eca8c47c8758470645a43ebaf3899c2f30d2c79a293064ee563dfe7c3a54d3c24daaa28128cd9df10a6b74bd1b9cf562e388be744

  • SSDEEP

    3072:dRsxM0KfuUfBbG6996HM0XU+aDe5UEGJSKz7ccRJMM3Ojl5My3LSEA0QchHnNt4f:dOzSG6hn+aCyIK3ccnMxjRA0Qchtivn

Malware Config

Signatures

  • Gh0st RAT payload 3 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Gh0strat family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\2025.scr.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3172
    • C:\Program Files (x86)\smsss.scr
      "C:\Program Files (x86)\smsss.scr" /S
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:5108
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2025SC~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\smsss.scr

    Filesize

    211KB

    MD5

    c104dce7ac77b6154e5235e8bf0ecd19

    SHA1

    64d2165f1ecb6c68358592c65e29caf68937386a

    SHA256

    e41b8ea141681fb21c0a4bcf6af20529249e1637a3af9f46a68899e8e39f1b86

    SHA512

    249d4f5e8c3475a9bb4a735eca8c47c8758470645a43ebaf3899c2f30d2c79a293064ee563dfe7c3a54d3c24daaa28128cd9df10a6b74bd1b9cf562e388be744

  • memory/3172-13-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-18-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-30-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

    Filesize

    4KB

  • memory/3172-29-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-28-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-27-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-25-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-3-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-24-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

    Filesize

    4KB

  • memory/3172-23-0x0000000002520000-0x0000000002521000-memory.dmp

    Filesize

    4KB

  • memory/3172-22-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-21-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-20-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-19-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-0-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/3172-17-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-16-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-15-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-4-0x0000000002510000-0x0000000002511000-memory.dmp

    Filesize

    4KB

  • memory/3172-14-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-7-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-11-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-10-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-9-0x0000000002490000-0x0000000002493000-memory.dmp

    Filesize

    12KB

  • memory/3172-8-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-12-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-6-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-5-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-2-0x0000000002500000-0x0000000002501000-memory.dmp

    Filesize

    4KB

  • memory/3172-34-0x00000000024B0000-0x00000000024B1000-memory.dmp

    Filesize

    4KB

  • memory/3172-37-0x00000000024E0000-0x00000000024E1000-memory.dmp

    Filesize

    4KB

  • memory/3172-36-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

    Filesize

    4KB

  • memory/3172-39-0x00000000024C0000-0x00000000024C1000-memory.dmp

    Filesize

    4KB

  • memory/3172-38-0x00000000024D0000-0x00000000024D1000-memory.dmp

    Filesize

    4KB

  • memory/3172-35-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

    Filesize

    4KB

  • memory/3172-33-0x00000000024F0000-0x00000000024F1000-memory.dmp

    Filesize

    4KB

  • memory/3172-40-0x0000000010000000-0x0000000010009000-memory.dmp

    Filesize

    36KB

  • memory/3172-1-0x00000000024A0000-0x00000000024A1000-memory.dmp

    Filesize

    4KB

  • memory/3172-48-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/5108-55-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB