Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 21:58

General

  • Target

    d087ba7be24bbdd35f3aa128059ea1dd3ddd6cc5376d4b9e2dfcea452deda94a.dll

  • Size

    701KB

  • MD5

    e1517af819f7d352b8daeed94f5b7450

  • SHA1

    feac89d0ece8e253b5ee519479d138e5992d036d

  • SHA256

    d087ba7be24bbdd35f3aa128059ea1dd3ddd6cc5376d4b9e2dfcea452deda94a

  • SHA512

    0c5d42d0acc99468064b749c07c1e6422e238df0db35c9c12e8a57680c55c70b18eb437fd6b6aa7d78cfc5c3b43617d9e6e54215733a99e2fba6c216c8699f0e

  • SSDEEP

    12288:7gIn6s/NFLEs3IOcwKs/rs9aaVBTlm64fPtA+AfbOIEH/WRep8KKJv3Tf:7dJjIOcwKs/r8lm6L+vz/eepPy

Malware Config

Signatures

  • Detect PurpleFox Rootkit 2 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 2 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.

  • Blocklisted process makes network request 2 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d087ba7be24bbdd35f3aa128059ea1dd3ddd6cc5376d4b9e2dfcea452deda94a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d087ba7be24bbdd35f3aa128059ea1dd3ddd6cc5376d4b9e2dfcea452deda94a.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Adds Run key to start application
      PID:1368

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1368-54-0x0000000000000000-mapping.dmp
  • memory/1368-55-0x0000000075451000-0x0000000075453000-memory.dmp
    Filesize

    8KB

  • memory/1368-56-0x0000000010000000-0x0000000010169000-memory.dmp
    Filesize

    1.4MB

  • memory/1368-57-0x0000000001F40000-0x00000000020E6000-memory.dmp
    Filesize

    1.6MB

  • memory/1368-63-0x0000000010000000-0x0000000010169000-memory.dmp
    Filesize

    1.4MB