Overview

overview

10

Static

static

Server.exe

windows7-x64

10

Server.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    43s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-09-2022 23:57

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General

  • Target

    Server.exe

  • Size

    396KB

  • MD5

    5efd6f7577970a139e6c496353a4d440

  • SHA1

    9eb248739c9ee37463dc7894556dbab953e830d6

  • SHA256

    3cb2fd26e550c2210a94d899a48ecd53216457e9c33f4a623bb3bb63263062a8

  • SHA512

    d46d560854e594a7426075b482d39b728d8ad02907ada85fa24acf63903e5ed012d975698cba975d3247174c6be7f7686014a66d5f8df326eeef54997cb20761

  • SSDEEP

    12288:sb5DbPowllDRf9Ib2JONfUcri1RcQP2a+:s9Dbg6lV9C2JOBUIc12a+

Score
10/10
gh0stratpurplefoxratrootkittrojanupx

Malware Config

Signatures

  • Detect PurpleFox Rootkit 5 IoCs

    Detect PurpleFox Rootkit.

    rootkit
  • Gh0st RAT payload 5 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
  • PurpleFox

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

    rootkittrojanpurplefox
  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

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

    upx
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 5 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1956
    • 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\Server.exe > nul
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1380
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 2 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:532
  • C:\Windows\SysWOW64\Ghiya.exe
    C:\Windows\SysWOW64\Ghiya.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:952
    • C:\Windows\SysWOW64\Ghiya.exe
      C:\Windows\SysWOW64\Ghiya.exe -acsi
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      PID:1416

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\Ghiya.exe
    Filesize

    396KB

    MD5

    5efd6f7577970a139e6c496353a4d440

    SHA1

    9eb248739c9ee37463dc7894556dbab953e830d6

    SHA256

    3cb2fd26e550c2210a94d899a48ecd53216457e9c33f4a623bb3bb63263062a8

    SHA512

    d46d560854e594a7426075b482d39b728d8ad02907ada85fa24acf63903e5ed012d975698cba975d3247174c6be7f7686014a66d5f8df326eeef54997cb20761

    Download Submit
  • C:\Windows\SysWOW64\Ghiya.exe
    Filesize

    396KB

    MD5

    5efd6f7577970a139e6c496353a4d440

    SHA1

    9eb248739c9ee37463dc7894556dbab953e830d6

    SHA256

    3cb2fd26e550c2210a94d899a48ecd53216457e9c33f4a623bb3bb63263062a8

    SHA512

    d46d560854e594a7426075b482d39b728d8ad02907ada85fa24acf63903e5ed012d975698cba975d3247174c6be7f7686014a66d5f8df326eeef54997cb20761

    Download Submit
  • \Windows\SysWOW64\Ghiya.exe
    Filesize

    396KB

    MD5

    5efd6f7577970a139e6c496353a4d440

    SHA1

    9eb248739c9ee37463dc7894556dbab953e830d6

    SHA256

    3cb2fd26e550c2210a94d899a48ecd53216457e9c33f4a623bb3bb63263062a8

    SHA512

    d46d560854e594a7426075b482d39b728d8ad02907ada85fa24acf63903e5ed012d975698cba975d3247174c6be7f7686014a66d5f8df326eeef54997cb20761

    Download Submit
  • memory/532-76-0x0000000000000000-mapping.dmp
    Download
  • memory/952-71-0x0000000010000000-0x00000000101B9000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/1380-68-0x0000000000000000-mapping.dmp
    Download
  • memory/1416-67-0x0000000000000000-mapping.dmp
    Download
  • memory/1416-77-0x0000000010000000-0x00000000101B9000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/1956-58-0x0000000010000000-0x00000000101B9000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/1956-59-0x0000000010000000-0x00000000101B9000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/1956-57-0x0000000010000000-0x00000000101B9000-memory.dmp
    Filesize

    1.7MB

    Download
  • memory/1956-54-0x0000000075141000-0x0000000075143000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1956-55-0x0000000010000000-0x00000000101B9000-memory.dmp
    Filesize

    1.7MB

    Download