Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 15:28

General

  • Target

    c0854fe2e5181b26fb9baec7eabcff9e3781cadf0968afce8f2acbe796b11142.exe

  • Size

    1.4MB

  • MD5

    747cfab3e1cb5aa6735d1cbf1408ae60

  • SHA1

    e231b96d6a5c411b85001a680cd0dedbaee32cf7

  • SHA256

    c0854fe2e5181b26fb9baec7eabcff9e3781cadf0968afce8f2acbe796b11142

  • SHA512

    4684d4703c80f1ae783711418654aa3dd41013e43ceb11edfce1b54af0b0343cf7c49a71093f5d523aa8a505fe489c56ea49f1fabbcb982d4958bfeb439c2c66

  • SSDEEP

    24576:F39WkOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:59qHPkVOBTK

Malware Config

Signatures

  • Detect PurpleFox Rootkit 1 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 1 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
  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Purplefox family
  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c0854fe2e5181b26fb9baec7eabcff9e3781cadf0968afce8f2acbe796b11142.exe
    "C:\Users\Admin\AppData\Local\Temp\c0854fe2e5181b26fb9baec7eabcff9e3781cadf0968afce8f2acbe796b11142.exe"
    1⤵
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2608
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\C0854F~1.EXE > nul
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:788
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 2 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3024
  • C:\Windows\SysWOW64\Skcsk.exe
    C:\Windows\SysWOW64\Skcsk.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2544
    • C:\Windows\SysWOW64\Skcsk.exe
      C:\Windows\SysWOW64\Skcsk.exe -acsi
      2⤵
      • Drops file in Drivers directory
      • Sets service image path in registry
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: LoadsDriver
      • Suspicious use of AdjustPrivilegeToken
      PID:1536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\Skcsk.exe

    Filesize

    1.4MB

    MD5

    747cfab3e1cb5aa6735d1cbf1408ae60

    SHA1

    e231b96d6a5c411b85001a680cd0dedbaee32cf7

    SHA256

    c0854fe2e5181b26fb9baec7eabcff9e3781cadf0968afce8f2acbe796b11142

    SHA512

    4684d4703c80f1ae783711418654aa3dd41013e43ceb11edfce1b54af0b0343cf7c49a71093f5d523aa8a505fe489c56ea49f1fabbcb982d4958bfeb439c2c66

  • memory/2608-0-0x0000000010000000-0x000000001019F000-memory.dmp

    Filesize

    1.6MB