Analysis

  • max time kernel
    150s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 11:38

General

  • Target
    5b16e172664a58f839ccb8180cd73cbc9b8da977e21dc2425b196920dc72bb56.exe
  • Size 9.9MB
  • Sample240612-nrn2natamf
  • SHA256 5b16e172664a58f839ccb8180cd73cbc9b8da977e21dc2425b196920dc72bb56
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 10 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 11 IoCs
  • Gh0strat

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

  • PurpleFox

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

  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 12 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • Program crash 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b16e172664a58f839ccb8180cd73cbc9b8da977e21dc2425b196920dc72bb56.exe
    "C:\Users\Admin\AppData\Local\Temp\5b16e172664a58f839ccb8180cd73cbc9b8da977e21dc2425b196920dc72bb56.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Users\Admin\AppData\Local\Temp\R.exe
      C:\Users\Admin\AppData\Local\Temp\\R.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:808
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 528
        3⤵
        • Program crash
        PID:3380
    • C:\Users\Admin\AppData\Local\Temp\N.exe
      C:\Users\Admin\AppData\Local\Temp\\N.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2852
      • 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\N.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4496
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2268
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 808 -ip 808
    1⤵
      PID:3840
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4540
      • C:\Windows\SysWOW64\TXPlatfor.exe
        C:\Windows\SysWOW64\TXPlatfor.exe -acsi
        2⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Executes dropped EXE
        • Suspicious behavior: LoadsDriver
        • Suspicious use of AdjustPrivilegeToken
        PID:436

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          N.exe

          • Path C:\Users\Admin\AppData\Local\Temp\N.exe
          • Size 377KB
          • SHA256 3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8
          • MD5 SHA1 SHA512 SSDEEP

          R.exe

          • Path C:\Users\Admin\AppData\Local\Temp\R.exe
          • Size 941KB
          • SHA256 bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c
          • MD5 SHA1 SHA512 SSDEEP

          240622765.txt

          • Path C:\Windows\SysWOW64\240622765.txt
          • Size 899KB
          • SHA256 1a60c7d8a19a7100c061515d0acc40c8d3812ec16ce96168c2d4e21e569c924a
          • MD5 SHA1 SHA512 SSDEEP

          memory/436-37-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/436-35-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/436-32-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/2852-14-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/2852-15-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/2852-18-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/2852-12-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4540-23-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4540-24-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4540-25-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4540-22-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4540-31-0x0000000010000000-0x00000000101B6000-memory.dmp