Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 18:56

General

  • Target

    a6f1ca8209fc23ae6686bfcd4fcc93fc7ae698124f918d5c0282e2ae75e8b248.exe

  • Size

    7.5MB

  • MD5

    d2dd17e328fab963a6e26c664f798b4a

  • SHA1

    b4a59a7879ce989955d84d45433107d538be9ad2

  • SHA256

    a6f1ca8209fc23ae6686bfcd4fcc93fc7ae698124f918d5c0282e2ae75e8b248

  • SHA512

    59df43cab1e2e1f215cd31e6be078501c763df747c7fcbd48edbcf36593dd6f49054f7c66a424d68475902dc53e1b34380c9bdfd558d36617bc45d2986bf5132

  • SSDEEP

    98304:+ws2ANnKXOaeOgmhictaQpYwcNw2PDcOfqPLDoBSNx1wyp:sKXbeO7dIcOfqLiA

Malware Config

Signatures

  • Detect PurpleFox Rootkit 5 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 6 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 DLL path for service in the registry 2 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 6 IoCs

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

  • Drops file in System32 directory 6 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 8 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6f1ca8209fc23ae6686bfcd4fcc93fc7ae698124f918d5c0282e2ae75e8b248.exe
    "C:\Users\Admin\AppData\Local\Temp\a6f1ca8209fc23ae6686bfcd4fcc93fc7ae698124f918d5c0282e2ae75e8b248.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\R.exe
      C:\Users\Admin\AppData\Local\Temp\\R.exe
      2⤵
      • Sets DLL path for service in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:2236
    • 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:2280
      • 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:2652
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2492
    • C:\Users\Admin\AppData\Local\Temp\HD_a6f1ca8209fc23ae6686bfcd4fcc93fc7ae698124f918d5c0282e2ae75e8b248.exe
      C:\Users\Admin\AppData\Local\Temp\HD_a6f1ca8209fc23ae6686bfcd4fcc93fc7ae698124f918d5c0282e2ae75e8b248.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2796
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:2216
    • 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:2920
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259398571.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2688
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2700
      • 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:2056

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      2.5MB

      MD5

      b85652613aff0a35266b7d9f769da8e1

      SHA1

      3db52682bf92637d2c7c8a53d64e5c36abe60884

      SHA256

      6185104d3d0fb759a7260ec4f07c19dc920af6d199dae7468f16a58d07567ab5

      SHA512

      58d50b15cdef6e45caff2cb6534675e4e473cb34c9f3ab1749d6c9f999c0eba32a358b562279e77c6de40a62d632079b65e03f23049eaa77f9d5997ae3f95234

    • C:\Users\Admin\AppData\Local\Temp\HD_a6f1ca8209fc23ae6686bfcd4fcc93fc7ae698124f918d5c0282e2ae75e8b248.exe
      Filesize

      5.0MB

      MD5

      ecda0fc4586e6083e6f005d4e6a9d560

      SHA1

      8096da9e8d0b1d7f10150646795948435fcc4872

      SHA256

      1eb0fee3caa50b879fe61b556474fc19e14c230e912027949ff2a960e7ed50ec

      SHA512

      1a9edf54ca5db8c3d1ece80e0ed2a99ce57bc7592ff947372ff672c2b3db0de2cab3e73fd2956a543dbc5b51048ac7562b9fdac2e8682b2700c8641f60734bb6

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

      377KB

      MD5

      4a36a48e58829c22381572b2040b6fe0

      SHA1

      f09d30e44ff7e3f20a5de307720f3ad148c6143b

      SHA256

      3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

      SHA512

      5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

      941KB

      MD5

      8dc3adf1c490211971c1e2325f1424d2

      SHA1

      4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

      SHA256

      bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

      SHA512

      ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

    • \Windows\SysWOW64\259398571.txt
      Filesize

      899KB

      MD5

      f66224f72091a78e5e62acf29acd31c1

      SHA1

      06f6e644da9a24970e2359f2f9af227055e3fbc6

      SHA256

      e80f4c557851a63214114bf9db4cb17cece5682f171c87fb65db8a1d62d08979

      SHA512

      4bb7bb99dfeac374ec45b55822936ac6a7a38c62858edd20ad1156c65bb45a0b19369c3ee55606ea754abeaaab39a9d22a3c275e46ea9e09b57530c7cc0467b6

    • \Windows\SysWOW64\Remote Data.exe
      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2056-46-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2056-39-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2056-48-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2280-20-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2280-21-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2280-18-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB