Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18/03/2024, 14:58

General

  • Target

    71e7a39ce3a4ef509af84372ef44d06bfc78ef6673358170d78282a82ba04ca3.exe

  • Size

    3.8MB

  • MD5

    bf873aaa4b27c3844a3d814c8733ff3f

  • SHA1

    47a7ed5e6357d5b8639a9a324c509b1bc8ad867f

  • SHA256

    71e7a39ce3a4ef509af84372ef44d06bfc78ef6673358170d78282a82ba04ca3

  • SHA512

    bb3d5fc0f352728361d21ebb631363c22b6aa4a95cee4b32be6239b27b27772cda95a4714e950c3d6f290aedb10d900c866899d28d33ecabf21fd9ca8e688cf3

  • SSDEEP

    49152:yCwsbCANnKXferL7Vwe/Gg0P+WhienRoBqLikrJw9Ge:Vws2ANnKXOaeOgmhRRuk92Ge

Malware Config

Signatures

  • Detect PurpleFox Rootkit 7 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
  • 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 9 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 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\71e7a39ce3a4ef509af84372ef44d06bfc78ef6673358170d78282a82ba04ca3.exe
    "C:\Users\Admin\AppData\Local\Temp\71e7a39ce3a4ef509af84372ef44d06bfc78ef6673358170d78282a82ba04ca3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2508
    • 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:2908
    • 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:2516
      • 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:2660
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2456
    • C:\Users\Admin\AppData\Local\Temp\HD_71e7a39ce3a4ef509af84372ef44d06bfc78ef6673358170d78282a82ba04ca3.exe
      C:\Users\Admin\AppData\Local\Temp\HD_71e7a39ce3a4ef509af84372ef44d06bfc78ef6673358170d78282a82ba04ca3.exe
      2⤵
      • Executes dropped EXE
      PID:2452
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:2884
    • 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:2892
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259430505.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2856
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2648
      • 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:2432

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\HD_71e7a39ce3a4ef509af84372ef44d06bfc78ef6673358170d78282a82ba04ca3.exe

            Filesize

            512KB

            MD5

            08838b500ee6950480b0e042c9c3055b

            SHA1

            ae7003bcfa4ca0c9db9799040af0554da9d47eba

            SHA256

            649aec81e66e3029c8843963cfe74608e089c938b1ff2e8cdefe92f7aa13f7f0

            SHA512

            b1680890c83ef068659edad6bc3fa83c4624ab243b9b9a8cd4c9383d17c44fdb84bd50f3d7c8612fdd455dab19675d1eb9220338ed68f46fd356659325aeebb8

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

            Filesize

            1.9MB

            MD5

            c0a306662875c7cfff50d0681e2a8f64

            SHA1

            00f24613d746d255a44a3a34583578e3d5653a77

            SHA256

            da2394e7fffd4434ee463734440621e435ddb1fe82f6d234157df3f01974236c

            SHA512

            d15352c94cdfb1645e2c5f8e538ad4660bbfb173fdd62f1818f4bf6ded712d1d9cddf83922751d383177a512462f16efc11b1160f3653d8de4f94e843bbaaed9

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

            Filesize

            941KB

            MD5

            8dc3adf1c490211971c1e2325f1424d2

            SHA1

            4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

            SHA256

            bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

            SHA512

            ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

          • \Users\Admin\AppData\Local\Temp\HD_71e7a39ce3a4ef509af84372ef44d06bfc78ef6673358170d78282a82ba04ca3.exe

            Filesize

            1.2MB

            MD5

            09038612f494ec878f4dff0b0a8a8d95

            SHA1

            eb94b8d8ae82f0b4c4785c2c91fc4d1053813b34

            SHA256

            e23026289a3fc99feed051e61717520ccf7bad743440c434e924a5c9b98edf11

            SHA512

            0fbe90839837667767f823bb30f005ee42620801f8365eeeab5ab7f3bbae7fb6d130197c3f77ca23e046ec04c54517f6266c1f915ef2c191feb3410a79e6392e

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

            Filesize

            377KB

            MD5

            4a36a48e58829c22381572b2040b6fe0

            SHA1

            f09d30e44ff7e3f20a5de307720f3ad148c6143b

            SHA256

            3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

            SHA512

            5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

          • \Windows\SysWOW64\259430505.txt

            Filesize

            899KB

            MD5

            11007288a4810e4185819d180bc0aa08

            SHA1

            ea19e8e9be198df86a544842e3e11e9ed8b7dd8b

            SHA256

            cd4b537332b2062384db28caec92d4988d3bf95e5a1b2afc1af016905c4ac350

            SHA512

            76b245aa77cee34cd4a04c9c3fcb3d9e5533c27319a8fde03e5ca4f10109a7cc1018ba3f507811c5af54bf063f708a1816ffceb961ef7672d3a5d274d4336b55

          • \Windows\SysWOW64\Remote Data.exe

            Filesize

            43KB

            MD5

            51138beea3e2c21ec44d0932c71762a8

            SHA1

            8939cf35447b22dd2c6e6f443446acc1bf986d58

            SHA256

            5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

            SHA512

            794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

          • memory/2432-45-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2432-49-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2432-52-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2516-31-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2516-20-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2516-21-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2516-18-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2648-43-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2648-29-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB