Overview

overview

10

Static

static

3

HEUR-Backd...32.exe

windows7-x64

10

HEUR-Backd...32.exe

windows10-2004-x64

10

HEUR-Backd...32.exe

windows10-ltsc 2021-x64

10

HEUR-Backd...32.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    15-11-2024 00:06

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General

  • Target

    HEUR-Backdoor.Win32.exe

  • Size

    30.5MB

  • MD5

    4f5c45902bd6d683fde339608c73fa45

  • SHA1

    d2a36781383d2a1e7e5dfa20db8b7214c210ba7e

  • SHA256

    302c010ea9f48aa392bae566a6ca71376934dfd0405c81d6e897cf4b41254b6b

  • SHA512

    bf9f17b80772dfe6a44f9ce1f9e834d3ed5d485f5f77d3b315c39c6344686e4fb842d3041225d3ef8a632aae3f52017763556f743e45e99c8a52a411f7ce4e42

  • SSDEEP

    6144:7Iqlnp3Us0ASuxNOug5MI3KBau3EO8iZrEXA2czL6mWzdoZtAznpGuGEwJvfJ0sS:7jLUsEux9g5F6U2WOWczLygAzN6fJg

Score
10/10
gh0stratpurplefoxdiscoverypersistenceratrootkittrojanupx

Malware Config

Signatures

  • Detect PurpleFox Rootkit 6 IoCs

    Detect PurpleFox Rootkit.

    rootkit
  • Gh0st RAT payload 6 IoCs
  • Gh0strat

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

    ratgh0strat
  • Gh0strat family
    gh0strat
  • PurpleFox

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

    rootkittrojanpurplefox
  • Purplefox family
    purplefox
  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 IoCs

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

    upx
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HEUR-Backdoor.Win32.exe
    "C:\Users\Admin\AppData\Local\Temp\HEUR-Backdoor.Win32.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Vnfvn.exe
      "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Vnfvn.exe"
      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
      • Suspicious use of SetWindowsHookEx
      PID:2316
    • 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\HEUR-B~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2428
      • 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:2540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Vnfvn.exe
    Filesize

    30.5MB

    MD5

    4f5c45902bd6d683fde339608c73fa45

    SHA1

    d2a36781383d2a1e7e5dfa20db8b7214c210ba7e

    SHA256

    302c010ea9f48aa392bae566a6ca71376934dfd0405c81d6e897cf4b41254b6b

    SHA512

    bf9f17b80772dfe6a44f9ce1f9e834d3ed5d485f5f77d3b315c39c6344686e4fb842d3041225d3ef8a632aae3f52017763556f743e45e99c8a52a411f7ce4e42

    Download Submit

  • memory/1708-2-0x0000000010000000-0x00000000101BA000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/1708-3-0x0000000010000000-0x00000000101BA000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/1708-4-0x0000000010000000-0x00000000101BA000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/1708-1-0x0000000010000000-0x00000000101BA000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/2316-10-0x0000000010000000-0x00000000101BA000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/2316-11-0x0000000010000000-0x00000000101BA000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/2316-15-0x0000000010000000-0x00000000101BA000-memory.dmp

    Filesize

    1.7MB

    Download