Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    21-06-2024 02:53

General

  • Target

    4222987eac63d0db61f29d1b5940b44c7ca1040249d713d119ff72b7786f4787.exe

  • Size

    2.5MB

  • MD5

    adc633a4f4a3fffd4113b2508d4972bc

  • SHA1

    49890bd1666d655d5789fe9223612f52e4bbe76c

  • SHA256

    4222987eac63d0db61f29d1b5940b44c7ca1040249d713d119ff72b7786f4787

  • SHA512

    2735423ffe77cfd1ea510d9ddee8d1ceb7b6cf069467e8a0cba7c64f2a8a5d226e011cf52e5fe1c14314e212d456d15bcea6fd12032efbbb5399fe8940398df8

  • SSDEEP

    49152:QQZAdVyVT9n/Gg0P+Who7qQwjqB5ncRdVAAV8RtaXgj:5GdVyVT9nOgmhkZPnGdOAyaQj

Malware Config

Signatures

  • Detect PurpleFox Rootkit 8 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 9 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
  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 8 IoCs
  • UPX packed file 9 IoCs

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

  • Drops file in System32 directory 6 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 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4222987eac63d0db61f29d1b5940b44c7ca1040249d713d119ff72b7786f4787.exe
    "C:\Users\Admin\AppData\Local\Temp\4222987eac63d0db61f29d1b5940b44c7ca1040249d713d119ff72b7786f4787.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\\svchost.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:804
      • 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\svchost.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1804
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2500
    • C:\Users\Admin\AppData\Local\Temp\svchos.exe
      C:\Users\Admin\AppData\Local\Temp\\svchos.exe
      2⤵
      • Server Software Component: Terminal Services DLL
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:2632
    • C:\Users\Admin\AppData\Local\Temp\HD_4222987eac63d0db61f29d1b5940b44c7ca1040249d713d119ff72b7786f4787.exe
      C:\Users\Admin\AppData\Local\Temp\HD_4222987eac63d0db61f29d1b5940b44c7ca1040249d713d119ff72b7786f4787.exe
      2⤵
      • Executes dropped EXE
      PID:2496
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1736
    • 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:2712
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:2028
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1580
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259390662.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2732

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Server Software Component

    1
    T1505

    Terminal Services DLL

    1
    T1505.005

    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

      1.5MB

      MD5

      4c49f105c2ac226fee112e4b1ab4942f

      SHA1

      0144f293cfb973a67d394c336a3b62d4d98f1ea6

      SHA256

      fbb6e8b7f51669ef50518f7669e8ef31ddec1c9965436b9c824228cb45028d0d

      SHA512

      68ae6047db2fe4423e1d43f4df5e4efc527bf648d2262d54cccc3762b0d9bddeb4d5cc666dbd47c39f17daa424e62a20251b499846e7ac27ccc7576e74683ba5

    • \Users\Admin\AppData\Local\Temp\HD_4222987eac63d0db61f29d1b5940b44c7ca1040249d713d119ff72b7786f4787.exe
      Filesize

      1.0MB

      MD5

      89c33e0bfdcc9b465a8c8a410bed5043

      SHA1

      d716523401d4b874cf6172c040339e7cab7cf886

      SHA256

      e21ee927f12821dcf9c30306ef012eb7339b2fa3cb23af9e1783684008b6c115

      SHA512

      06b6ab07cdb29fb64efb1d0bd84e2ef79cf0886b19c73fad36066a8246ecff59a4a524e498432f9d1b6b423bbc47785ec29c0bf6eef84e26a024cd04ca45b732

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

      93KB

      MD5

      3b377ad877a942ec9f60ea285f7119a2

      SHA1

      60b23987b20d913982f723ab375eef50fafa6c70

      SHA256

      62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

      SHA512

      af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

      377KB

      MD5

      a4329177954d4104005bce3020e5ef59

      SHA1

      23c29e295e2dbb8454012d619ca3f81e4c16e85a

      SHA256

      6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

      SHA512

      81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

    • \Windows\SysWOW64\259390662.txt
      Filesize

      50KB

      MD5

      d830349f87e01432facfaf1d85fbee6d

      SHA1

      d5faea9c58f2c7c02c0706553e413d7e30253656

      SHA256

      d3476c4123dabf7009d9896cecf7ee2e7297a40dcb69bc0ac0ea58bc9678d615

      SHA512

      6a111863e3d5467016f965ad65927030ac541f449ccfd24371c36df884b273bbf143a2c40f67bccb422ca1f52bcb4d1b4d4e8366a67eaac615a878c9ba05f354

    • \Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/804-9-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/804-8-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/804-7-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/804-5-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/1736-30-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/1736-18-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2712-35-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2712-37-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2712-50-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB