Analysis

  • max time kernel
    140s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2023 17:24

General

  • Target

    79fdafce8486c84c63a01fa7353da03952fc430576f4f3d53ac8cdb517ec18db.exe

  • Size

    456KB

  • MD5

    5ec615ccfed7ff83c807ea70ec797542

  • SHA1

    82ce31c4b2ca78fa5b9373b8da51eb77af0553eb

  • SHA256

    79fdafce8486c84c63a01fa7353da03952fc430576f4f3d53ac8cdb517ec18db

  • SHA512

    f27ed255a3384115a3a3a02397753176e73f0ea154720d9f7e3181870283040f393868a8b4d3c07b2f4f8a82bd8e38f91bb0109de7a854db9c694f8ee1b22447

  • SSDEEP

    12288:v8noxguizghvk2u+hbprhJysvBMBMQyOgZT8w2ja8:v6oazh2ltrhJPBSYOg7ua

Malware Config

Signatures

  • Detect PurpleFox Rootkit 5 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 7 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.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 8 IoCs

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

  • VMProtect packed file 10 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Drops file in System32 directory 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79fdafce8486c84c63a01fa7353da03952fc430576f4f3d53ac8cdb517ec18db.exe
    "C:\Users\Admin\AppData\Local\Temp\79fdafce8486c84c63a01fa7353da03952fc430576f4f3d53ac8cdb517ec18db.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1988
    • 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\79FDAF~1.EXE > nul
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2364
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 2 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2900
  • C:\Windows\SysWOW64\Stlme.exe
    C:\Windows\SysWOW64\Stlme.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2296
    • C:\Windows\SysWOW64\Stlme.exe
      C:\Windows\SysWOW64\Stlme.exe -acsi
      2⤵
      • Executes dropped EXE
      PID:2328

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\Stlme.exe

    Filesize

    456KB

    MD5

    5ec615ccfed7ff83c807ea70ec797542

    SHA1

    82ce31c4b2ca78fa5b9373b8da51eb77af0553eb

    SHA256

    79fdafce8486c84c63a01fa7353da03952fc430576f4f3d53ac8cdb517ec18db

    SHA512

    f27ed255a3384115a3a3a02397753176e73f0ea154720d9f7e3181870283040f393868a8b4d3c07b2f4f8a82bd8e38f91bb0109de7a854db9c694f8ee1b22447

  • C:\Windows\SysWOW64\Stlme.exe

    Filesize

    456KB

    MD5

    5ec615ccfed7ff83c807ea70ec797542

    SHA1

    82ce31c4b2ca78fa5b9373b8da51eb77af0553eb

    SHA256

    79fdafce8486c84c63a01fa7353da03952fc430576f4f3d53ac8cdb517ec18db

    SHA512

    f27ed255a3384115a3a3a02397753176e73f0ea154720d9f7e3181870283040f393868a8b4d3c07b2f4f8a82bd8e38f91bb0109de7a854db9c694f8ee1b22447

  • C:\Windows\SysWOW64\Stlme.exe

    Filesize

    456KB

    MD5

    5ec615ccfed7ff83c807ea70ec797542

    SHA1

    82ce31c4b2ca78fa5b9373b8da51eb77af0553eb

    SHA256

    79fdafce8486c84c63a01fa7353da03952fc430576f4f3d53ac8cdb517ec18db

    SHA512

    f27ed255a3384115a3a3a02397753176e73f0ea154720d9f7e3181870283040f393868a8b4d3c07b2f4f8a82bd8e38f91bb0109de7a854db9c694f8ee1b22447

  • \Windows\SysWOW64\Stlme.exe

    Filesize

    456KB

    MD5

    5ec615ccfed7ff83c807ea70ec797542

    SHA1

    82ce31c4b2ca78fa5b9373b8da51eb77af0553eb

    SHA256

    79fdafce8486c84c63a01fa7353da03952fc430576f4f3d53ac8cdb517ec18db

    SHA512

    f27ed255a3384115a3a3a02397753176e73f0ea154720d9f7e3181870283040f393868a8b4d3c07b2f4f8a82bd8e38f91bb0109de7a854db9c694f8ee1b22447

  • memory/1988-74-0x0000000010000000-0x00000000101B8000-memory.dmp

    Filesize

    1.7MB

  • memory/1988-54-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1988-60-0x0000000010000000-0x00000000101B8000-memory.dmp

    Filesize

    1.7MB

  • memory/1988-59-0x0000000010000000-0x00000000101B8000-memory.dmp

    Filesize

    1.7MB

  • memory/1988-55-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1988-73-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1988-58-0x0000000010000000-0x00000000101B8000-memory.dmp

    Filesize

    1.7MB

  • memory/1988-56-0x0000000010000000-0x00000000101B8000-memory.dmp

    Filesize

    1.7MB

  • memory/2296-69-0x0000000010000000-0x00000000101B8000-memory.dmp

    Filesize

    1.7MB

  • memory/2296-78-0x0000000010000000-0x00000000101B8000-memory.dmp

    Filesize

    1.7MB

  • memory/2296-64-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/2296-75-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/2328-83-0x0000000010000000-0x00000000101B8000-memory.dmp

    Filesize

    1.7MB

  • memory/2328-85-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB