Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/03/2024, 19:09

General

  • Target

    fa5a33cbca326fb59d026d9e0b4a372c1dd21db5fcee1ebd498e1bb3c1b3c340.exe

  • Size

    3.0MB

  • MD5

    6e1492fcd8a7bd342dc5bef4755cf981

  • SHA1

    16a2b3fe5f5e172b1a79927d9d3bc11f913c6d4d

  • SHA256

    fa5a33cbca326fb59d026d9e0b4a372c1dd21db5fcee1ebd498e1bb3c1b3c340

  • SHA512

    0b7ecc7fa1a79c02719ae4d42081fa4018793316fbe6a66304bfab46c4ee7dff252e30bcd5657bd9ad72791087d3f59a3f9ad7decd0162c2499fdcb9103dc598

  • SSDEEP

    49152:yCwsbCANnKXferL7Vwe/Gg0P+Whk94Np:Vws2ANnKXOaeOgmhk2p

Malware Config

Signatures

  • Detect PurpleFox Rootkit 9 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 11 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 3 IoCs
  • UPX packed file 12 IoCs

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

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa5a33cbca326fb59d026d9e0b4a372c1dd21db5fcee1ebd498e1bb3c1b3c340.exe
    "C:\Users\Admin\AppData\Local\Temp\fa5a33cbca326fb59d026d9e0b4a372c1dd21db5fcee1ebd498e1bb3c1b3c340.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2052
    • 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:2632
    • 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:2524
      • 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:3892
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:3796
    • C:\Users\Admin\AppData\Local\Temp\HD_fa5a33cbca326fb59d026d9e0b4a372c1dd21db5fcee1ebd498e1bb3c1b3c340.exe
      C:\Users\Admin\AppData\Local\Temp\HD_fa5a33cbca326fb59d026d9e0b4a372c1dd21db5fcee1ebd498e1bb3c1b3c340.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2580
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c taskkill /im kugou.exe /f&del /q
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4980
        • C:\Windows\system32\taskkill.exe
          taskkill /im kugou.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4444
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:864
    • 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:3804
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240596171.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1448
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1836
      • 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:2472

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            2.6MB

            MD5

            274fe01eb0f4cd402c3cfdeda4b30715

            SHA1

            72db93e86caaadf2f28e5265ebfbc2ea6ba9e705

            SHA256

            843743adaef60d2f490d2702487f7687ffa36524d11ad89feed31bbddfd21d40

            SHA512

            6d71d57566f436c6e1242421070bca8c62ba95a7ccfc73ae5efef54f93482b3e3b742bda361b7c713a5e5158f11310401341bd1ddd4f011ba33f77c5e9543798

          • C:\Users\Admin\AppData\Local\Temp\HD_fa5a33cbca326fb59d026d9e0b4a372c1dd21db5fcee1ebd498e1bb3c1b3c340.exe

            Filesize

            320KB

            MD5

            5566e7a8fa387f11b5d0e5403df56073

            SHA1

            a8937d1e0936074f316642b59adb3b696b7a3694

            SHA256

            93a724a0d489c2a374a4805c0ddeb0566f1bca71de4a39fc2838633f250f49c9

            SHA512

            f296f63b45a9a8c5ec1b7ec3160b997b403ef6042903bd0e6d4e1592b8a6ca654009a117c1fc8ce507e3dc6535f399dfee9bc2ea2cd28fb9ba237cb71183e332

          • C:\Users\Admin\AppData\Local\Temp\HD_fa5a33cbca326fb59d026d9e0b4a372c1dd21db5fcee1ebd498e1bb3c1b3c340.exe

            Filesize

            69KB

            MD5

            9617874ff7425158107daabbd348cbf7

            SHA1

            7586734d229baa857aa02a4d844d643416b0894d

            SHA256

            86a69ddd70254e767b03ef909974f87290e530d3df4267282c67733c31b15665

            SHA512

            af020148d768342c52de95c242856a36d1fb956d7b567723a7b810f9672f91d86d74f53fb545b340dd89cf911906682059b33cba50e080cfe0e13cfac33f0bb1

          • 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\240596171.txt

            Filesize

            899KB

            MD5

            5963d84b4fcf13fa219c8305818aff50

            SHA1

            57d050b8a87fa1a4dcdd20bcf012a497ba583bc8

            SHA256

            554d7ea488a25e0d52e698e08e1fa28bcf4b6e42827250ca8bfdd0262cf16041

            SHA512

            eff8117be7eec48ae333b26babcb7df88dc7bfde98d0ec0dd483d52a2ad8548604dfc7ce0cb503ba059f4b3511c04ab1cc731b38868e072690b731f3194cc344

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

            Filesize

            60KB

            MD5

            889b99c52a60dd49227c5e485a016679

            SHA1

            8fa889e456aa646a4d0a4349977430ce5fa5e2d7

            SHA256

            6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

            SHA512

            08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

          • memory/1836-29-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/1836-30-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/1836-26-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/1836-28-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/1836-38-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2472-49-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2472-44-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2472-46-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2524-21-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2524-33-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2524-19-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2524-17-0x0000000010000000-0x00000000101B6000-memory.dmp

            Filesize

            1.7MB

          • memory/2580-41-0x0000000140000000-0x0000000140105000-memory.dmp

            Filesize

            1.0MB

          • memory/2580-66-0x0000000140000000-0x0000000140105000-memory.dmp

            Filesize

            1.0MB