Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-07-2024 05:08

General

  • Target

    ac539ffb5e574bc44d9244188499a26c34f2c98604f76646651365b483a18bbb.exe

  • Size

    4.0MB

  • MD5

    ff32ba92bc13642565628d231522c8e7

  • SHA1

    3fe53758e3eee25d2e473a2561fabed8839f1b12

  • SHA256

    ac539ffb5e574bc44d9244188499a26c34f2c98604f76646651365b483a18bbb

  • SHA512

    49167df30cfe2be460de147b23c5f687592e31f53bbe544137de486f553b4004a15b47123f07b6349985a8575f31a89ca43a1293a14f3333ffe594d6b9a35101

  • SSDEEP

    98304:2GdVyVT9nOgmhHDmn2nU5WP4ukA8TbLGNMZw:lWT9nO79mnCUYgukhHw

Malware Config

Signatures

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

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

  • Drops file in System32 directory 6 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 10 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac539ffb5e574bc44d9244188499a26c34f2c98604f76646651365b483a18bbb.exe
    "C:\Users\Admin\AppData\Local\Temp\ac539ffb5e574bc44d9244188499a26c34f2c98604f76646651365b483a18bbb.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2236
    • 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:2164
      • 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:1496
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:1112
    • 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:4600
    • C:\Users\Admin\AppData\Local\Temp\HD_ac539ffb5e574bc44d9244188499a26c34f2c98604f76646651365b483a18bbb.exe
      C:\Users\Admin\AppData\Local\Temp\HD_ac539ffb5e574bc44d9244188499a26c34f2c98604f76646651365b483a18bbb.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:840
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2952
    • 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:2592
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:1644
    • 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:3868
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240631218.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:3620

    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

      1.4MB

      MD5

      56f6e0d061bd3093c2170e3707f1b274

      SHA1

      21282cebba84a1a2f601a81e0191d43cd5399a6d

      SHA256

      2b8cf67787bf6ba3af18aaf089eb860d49762ff0c89232c324222544aaf36559

      SHA512

      f203e3fa09aeb2ffd99e0dbe7f89a76e8aad21621ee26b617395a99bdc9c0532e1a04629431b3b8a1f865d7fb0c58a5e28fcb913f4534230f702c362a066f656

    • C:\Users\Admin\AppData\Local\Temp\HD_ac539ffb5e574bc44d9244188499a26c34f2c98604f76646651365b483a18bbb.exe
      Filesize

      2.5MB

      MD5

      51b6cde3ad56d6020bbe61a1cf47fb72

      SHA1

      6f46d5f57cd260cf3f783d51340c95b183537d68

      SHA256

      69f1feeb578701b8008d0362062923248a08b2e024b54f59afd871fa204e6e66

      SHA512

      d257ebcdb96e2331ceae78f41d343b5aa1eb11088cd31bfe2dc751f9994e5665b944c3b5b743943b1057f426439b4a1ae49b68693d63a192685f12a7fa5d7261

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

      93KB

      MD5

      3b377ad877a942ec9f60ea285f7119a2

      SHA1

      60b23987b20d913982f723ab375eef50fafa6c70

      SHA256

      62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

      SHA512

      af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

      377KB

      MD5

      a4329177954d4104005bce3020e5ef59

      SHA1

      23c29e295e2dbb8454012d619ca3f81e4c16e85a

      SHA256

      6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

      SHA512

      81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

    • C:\Users\Admin\AppData\Roaming\2345SoftMgr\update\2345SoftMgr.CheckVersion.data
      Filesize

      29B

      MD5

      99fb8e84b8aa92889349054a60e1f359

      SHA1

      1b3dd1afb4fe4533ca16db4dd3e7845c13b0e1c5

      SHA256

      5313e624a817ebcb34675027d12b87465de4fc4fdddfdd74d244490c4911b8e4

      SHA512

      2a99095109445c3ca1b9fad5c87fdfed331641401ca8d19d3ab4d109e18b9dc5feb739485f14f390bd3bcfa3a4325e3b1278fe1bb8690dd8df16edb9af52faac

    • C:\Windows\SysWOW64\240631218.txt
      Filesize

      50KB

      MD5

      70ade033a355b919f35e014f464737b3

      SHA1

      81cbf3acac7d5e9533a644fc8d57534f03452132

      SHA256

      0259c27d962c7ba803fb1f33180348db9134c5611082aee433474e352c25a462

      SHA512

      17607225ff7f5ea97fc0b9906f50937f022656762dd21a85b939b40d167c98a904a10a81a5ba40b8db88e2891aa5ca65d7e33ac55034bfc6ee1942550a97c5d6

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

      60KB

      MD5

      889b99c52a60dd49227c5e485a016679

      SHA1

      8fa889e456aa646a4d0a4349977430ce5fa5e2d7

      SHA256

      6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

      SHA512

      08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

    • memory/2164-10-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2164-6-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2164-4-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2164-7-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2592-43-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2592-33-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2592-32-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2592-36-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2952-16-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2952-19-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2952-13-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2952-30-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2952-15-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB