Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-06-2024 16:43

General

  • Target

    3cf8cc5480bf0a2a8a62f25507980b8d12df0268feb077f81d52dbc0695595a3.exe

  • Size

    12.0MB

  • MD5

    ef0046b6d303caff7f67d657d4d72743

  • SHA1

    173da1ffd07df48af93918cecf8193be186a74d6

  • SHA256

    3cf8cc5480bf0a2a8a62f25507980b8d12df0268feb077f81d52dbc0695595a3

  • SHA512

    23ec42237c3bf4793553ab512a2bf97034868cf296a1eec940e74e1231282eceaf376f72cf227182a77d039609e4800fd1e4f18c16af28712126080ff7b37396

  • SSDEEP

    196608:WKXbeO7//NWps3NvODE/if80S8vgJTetR5Dmw+qqcorPZtHRNj9aviMfLsZ9qks:77//NoaNvOD8TeL5DmpvcaVgieP

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 7 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
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs
  • Drops file in Program Files directory 1 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 28 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3cf8cc5480bf0a2a8a62f25507980b8d12df0268feb077f81d52dbc0695595a3.exe
    "C:\Users\Admin\AppData\Local\Temp\3cf8cc5480bf0a2a8a62f25507980b8d12df0268feb077f81d52dbc0695595a3.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3912
    • C:\Users\Admin\AppData\Local\Temp\R.exe
      C:\Users\Admin\AppData\Local\Temp\\R.exe
      2⤵
      • Server Software Component: Terminal Services DLL
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:3612
    • C:\Users\Admin\AppData\Local\Temp\N.exe
      C:\Users\Admin\AppData\Local\Temp\\N.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3432
      • 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\N.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1200
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:4720
    • C:\Users\Admin\AppData\Local\Temp\HD_3cf8cc5480bf0a2a8a62f25507980b8d12df0268feb077f81d52dbc0695595a3.exe
      C:\Users\Admin\AppData\Local\Temp\HD_3cf8cc5480bf0a2a8a62f25507980b8d12df0268feb077f81d52dbc0695595a3.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2260
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000"
        3⤵
        • Hide Artifacts: Hidden Files and Directories
        • Suspicious use of WriteProcessMemory
        PID:1112
        • C:\Windows\system32\attrib.exe
          attrib +h "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000"
          4⤵
          • Views/modifies file attributes
          PID:2060
      • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\BANDIVIEW-SETUP-X64.EXE
        "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\BANDIVIEW-SETUP-X64.EXE" C:\Users\Admin\AppData\Local\Temp\HD_3cf8cc5480bf0a2a8a62f25507980b8d12df0268feb077f81d52dbc0695595a3.exe
        3⤵
        • Executes dropped EXE
        PID:2452
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:684
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3904
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240598171.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4228
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:456
      • C:\Windows\SysWOW64\TXPlatfor.exe
        C:\Windows\SysWOW64\TXPlatfor.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:4976

    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

    Hide Artifacts

    2
    T1564

    Hidden Files and Directories

    2
    T1564.001

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Remote System Discovery

    1
    T1018

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\BANDIVIEW-SETUP-X64.EXE
      Filesize

      8.9MB

      MD5

      e1bc0f19422ea0f4c99af6bf5317632a

      SHA1

      decffc3bf1ea5edc913afd55e43bb337ab7287cc

      SHA256

      c7cf671305440c1e33f6a51b1f52aae492b26d2b53360a7d88f4c661b0c38c09

      SHA512

      804f42bfcf79cc1907ff97c6a39a8155ea54431632fbda594e4bdf80ed95ad677351c9f928c427933897f504f2066d3d5f3b6f2f789b72c7fad1f028d3f55fb2

    • C:\Users\Admin\AppData\Local\Temp\HD_3cf8cc5480bf0a2a8a62f25507980b8d12df0268feb077f81d52dbc0695595a3.exe
      Filesize

      9.6MB

      MD5

      e6c2996435883b7fbc802bc9565b8600

      SHA1

      2faf98319a4eaf7e237d45e2108688246e34fbd8

      SHA256

      d4ef2f3734f71b4e25c53584074b00686530d5222809684a6bfd21216b6fb7b4

      SHA512

      13298a3559d1ccf0f2476a16667475413ee44acb48f3a5bc22fe9d3ea9b600e613f87acaf6b8eeb30f4297e289b9e9753b44f1eaac2e42dec00a914c72c02ca1

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

      2.4MB

      MD5

      fe3eb47a978d83da8141331f7c408779

      SHA1

      6f515639ca2e9fb11eaa8d586f8205fbaff51b57

      SHA256

      8a6b2bdca79be3dcca28240ce2f0f6b7a7bc5de0ecacc416885babbb45f06861

      SHA512

      e65dfd4b057a829e910d212be405384e2c4144d85f1fb82e0292cd72c3c915954d2eb8be30939e015880d614a2f0f6162a427db63dadbdbf8af43d4c38da48c6

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

      377KB

      MD5

      4a36a48e58829c22381572b2040b6fe0

      SHA1

      f09d30e44ff7e3f20a5de307720f3ad148c6143b

      SHA256

      3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

      SHA512

      5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

      941KB

      MD5

      8dc3adf1c490211971c1e2325f1424d2

      SHA1

      4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

      SHA256

      bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

      SHA512

      ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

    • C:\Windows\SysWOW64\240598171.txt
      Filesize

      899KB

      MD5

      cd7e7647b21934f286c65598e495f687

      SHA1

      8b12053e9e33d00051cf19f170df96f2561dbde2

      SHA256

      332aa5d38a9aa08df7f555733ce239ec058430e0178569da43727bfd0378aa3e

      SHA512

      d8e4bc4b30328b255674807eca8d1d47affad34af44bba54c79864249cd61a317c87d049acea8e7479893fb2d50b80209f89b66026efe7fdd42afaa124860d12

    • C:\Windows\SysWOW64\Remote Data.exe
      Filesize

      60KB

      MD5

      889b99c52a60dd49227c5e485a016679

      SHA1

      8fa889e456aa646a4d0a4349977430ce5fa5e2d7

      SHA256

      6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

      SHA512

      08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

    • memory/456-28-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/456-29-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/456-26-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2260-86-0x0000000000400000-0x000000000044B000-memory.dmp
      Filesize

      300KB

    • memory/2260-39-0x0000000000400000-0x000000000044B000-memory.dmp
      Filesize

      300KB

    • memory/3432-20-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3432-23-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3432-17-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3432-19-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4976-42-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4976-45-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/4976-40-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB