Analysis

  • max time kernel
    154s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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 12 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 12 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
  • UPX packed file 14 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 5 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 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
    "C:\Users\Admin\AppData\Local\Temp\ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3148
    • 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:4896
      • 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:4928
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:4984
    • C:\Users\Admin\AppData\Local\Temp\HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
      C:\Users\Admin\AppData\Local\Temp\HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
      2⤵
      • Executes dropped EXE
      PID:3304
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:3300
    • 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:4612
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4256 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4936

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

      1.3MB

      MD5

      75319694da7ff6a660e15654e8691478

      SHA1

      6cdb9f457d03a9e81145694fe7b780182fd4722c

      SHA256

      79a81117ea64cccd640612fb650ede1f38f73c9920113dee9aaebcebd798df33

      SHA512

      0c41a8de79158bf3ad03fb2805c80eca13fa68d60a7976ca931d57602aa98d902f336077fdc41e3c12656b66eeadf1435514ff4e9b315be773183c0a3ea9a639

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

      1.3MB

      MD5

      dc42ba3e87180c9dc0f9bd8536522d52

      SHA1

      a7f14ac9f1d26f160923ea3994a56a3496c82591

      SHA256

      8dc6372b9d017250fbd3b4a92c858b1805b7a0e7894f24fa35290230772c002b

      SHA512

      57fc2e9929ef779ce2ab4b9662a54f62d64829507b3856528652ad095c35eddfb9067cd5ad2c26dcb8cc693c187acc2523290d98cfff81eaf9a0c1a04d7cdb38

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

      1.2MB

      MD5

      d06c3ec17437ae4c3e16ba515bfe10d2

      SHA1

      3ca62741ef2935e987c81b8a7227b29d7bcd453b

      SHA256

      f7bd9c1c013e111fe7963b4a9c7af1bce47945706fc2ece1e0b7c3906d8b900a

      SHA512

      8f75c047113ad97f7d3221a9e230b89ebd675c47ae426e717b4e04be9a7fed0074ca296abc4830fdfaa8d35630a4eb68574317f37c451c9153d1cba270e63df2

    • C:\Users\Admin\AppData\Local\Temp\RCXCCA7.tmp
      Filesize

      1.3MB

      MD5

      bb7bc19498ea4b6441d42ee88a86362f

      SHA1

      468de8c668d98af8eef416e678692051204cdae6

      SHA256

      3814c81c99e4db4a3aaace4b52dbecba712ce9008113c3b2aa0c29e85c63a5ea

      SHA512

      feb40af8a4da43702acec9ac42445ff45112b5e06135eac766c957ed6673780f954ac30c8b1fb39ea748a545bd86be70a6cd8193693454c045e291ad3fe97d71

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

      377KB

      MD5

      80ade1893dec9cab7f2e63538a464fcc

      SHA1

      c06614da33a65eddb506db00a124a3fc3f5be02e

      SHA256

      57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

      SHA512

      fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

    • C:\Users\Admin\AppData\Local\Temp\X.ico
      Filesize

      69KB

      MD5

      e33fb6d686b1a8b171349572c5a33f67

      SHA1

      29f24fe536adf799b69b63c83efadc1bce457a54

      SHA256

      020c8e0963f89f4b14538b7d69e83c6fec44a29bbbd52fbb6deb2be5c697f450

      SHA512

      cf1f1d6a9efe53f84e5b4a8246b87c0b96496716605d1b00352d9aae30e664d3d2cbadebf598b4e690a9feef0b5785887a4e643cc5f68938ca744af1d3539e55

    • memory/3300-27-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3300-15-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3300-17-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3300-13-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3300-16-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4612-33-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4612-30-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4612-31-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4612-37-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4896-21-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4896-8-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4896-7-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4896-6-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4896-4-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB