Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21-06-2024 02:57

General

  • Target

    ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe

  • Size

    2.5MB

  • MD5

    3030278fede9a055d39ddf84387f1529

  • SHA1

    c2053a7cac4ba3a876fc1e39e6c5359903d263a6

  • SHA256

    ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f

  • SHA512

    f8fb88125e8100f9d441007e0c892b311afe4f5201e5b6ca5f24549a1ecfb76e8e09b8c7a72e05a4d986e57e8c87ffbea931703713d53e592dba32ed7075b0ad

  • SSDEEP

    49152:R09XJt4HIN2H2tFvduySiKPDeli41J9LmlaUzpb7:yZJt4HINy2LkrPDel/F+

Malware Config

Signatures

  • Detect PurpleFox Rootkit 11 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 4 IoCs
  • UPX packed file 13 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
    "C:\Users\Admin\AppData\Local\Temp\ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Users\Admin\AppData\Local\Temp\RVN.exe
      C:\Users\Admin\AppData\Local\Temp\\RVN.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2840
      • 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\RVN.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2556
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2984
    • C:\Users\Admin\AppData\Local\Temp\HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
      C:\Users\Admin\AppData\Local\Temp\HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
      2⤵
      • Executes dropped EXE
      PID:2544
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\SysWOW64\TXPlatforn.exe
      C:\Windows\SysWOW64\TXPlatforn.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:2632

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\VideoLAN\VLC\vlc.exe
    Filesize

    2.3MB

    MD5

    9bdec27512a1d9fddd424d72923af152

    SHA1

    8b724d342f69e960388a93cfe7fdaa1a34691fe8

    SHA256

    62905e83428433e69f2361b362bee7a63bcfe5574557dfb9f38656dd3388a659

    SHA512

    43b48e82ecbb67f27969a0918a9153f9ea6b80f10dab8533c667cc3b2f80797bb68c8f6a905a0536a406cf77e1a9d57b8b625a692ba9f27409882a0eea658e68

  • C:\Users\Admin\AppData\Local\Temp\HD_X.dat
    Filesize

    1.3MB

    MD5

    75319694da7ff6a660e15654e8691478

    SHA1

    6cdb9f457d03a9e81145694fe7b780182fd4722c

    SHA256

    79a81117ea64cccd640612fb650ede1f38f73c9920113dee9aaebcebd798df33

    SHA512

    0c41a8de79158bf3ad03fb2805c80eca13fa68d60a7976ca931d57602aa98d902f336077fdc41e3c12656b66eeadf1435514ff4e9b315be773183c0a3ea9a639

  • \Users\Admin\AppData\Local\Temp\HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
    Filesize

    1.2MB

    MD5

    d06c3ec17437ae4c3e16ba515bfe10d2

    SHA1

    3ca62741ef2935e987c81b8a7227b29d7bcd453b

    SHA256

    f7bd9c1c013e111fe7963b4a9c7af1bce47945706fc2ece1e0b7c3906d8b900a

    SHA512

    8f75c047113ad97f7d3221a9e230b89ebd675c47ae426e717b4e04be9a7fed0074ca296abc4830fdfaa8d35630a4eb68574317f37c451c9153d1cba270e63df2

  • \Users\Admin\AppData\Local\Temp\RVN.exe
    Filesize

    377KB

    MD5

    80ade1893dec9cab7f2e63538a464fcc

    SHA1

    c06614da33a65eddb506db00a124a3fc3f5be02e

    SHA256

    57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

    SHA512

    fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

  • memory/2600-30-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2600-18-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2632-33-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2632-35-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2632-31-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2632-38-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2632-61-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2632-34-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2632-62-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2840-9-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2840-8-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2840-7-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/2840-5-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB