Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 06:55

General

  • Target

    c9c15c614ea8a43be81ad6da31b320a1577f142ee1ec84e498bede89d360bdb3.exe

  • Size

    480KB

  • MD5

    84730977d3c5921ce72f06569e0303d7

  • SHA1

    0136a583df02745bdc1bbef21e6bf395a07a87ab

  • SHA256

    c9c15c614ea8a43be81ad6da31b320a1577f142ee1ec84e498bede89d360bdb3

  • SHA512

    9f4b3eecb443f0b7b8cfc30dec73a2e04d639406e6c7c945382173d8bd11d12d28bb9e4888469ea0873e8f0c5b43ec0e9f3b6688afb8242dec451a353aa9e368

  • SSDEEP

    12288:diJu+2t874tMkvsVSKgMG5PJVSiFCtDM:druNMMG5nSiFCtD

Malware Config

Signatures

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 2 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 6 IoCs

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

  • Loads dropped DLL 8 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1188
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1224
        • C:\Users\Admin\AppData\Local\Temp\c9c15c614ea8a43be81ad6da31b320a1577f142ee1ec84e498bede89d360bdb3.exe
          "C:\Users\Admin\AppData\Local\Temp\c9c15c614ea8a43be81ad6da31b320a1577f142ee1ec84e498bede89d360bdb3.exe"
          2⤵
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1220
          • C:\Users\Admin\AppData\Local\Temp\7132194.exe
            "C:\Users\Admin\AppData\Local\Temp\7132194.exe"
            3⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1764
            • C:\Users\Admin\AppData\Local\Temp\7132194.exe
              "C:\Users\Admin\AppData\Local\Temp\7132194.exe"
              4⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2024
              • C:\Users\Admin\AppData\Roaming\Uduby\gioc.exe
                "C:\Users\Admin\AppData\Roaming\Uduby\gioc.exe"
                5⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:1872
                • C:\Users\Admin\AppData\Roaming\Uduby\gioc.exe
                  "C:\Users\Admin\AppData\Roaming\Uduby\gioc.exe"
                  6⤵
                  • Executes dropped EXE
                  • Adds Run key to start application
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of WriteProcessMemory
                  PID:2004
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp890f69e6.bat"
                5⤵
                  PID:928
            • C:\Users\Admin\AppData\Local\Temp\c9c15c614ea8a43be81ad6da31b320a1577f142ee1ec84e498bede89d360bdb3.exe
              "C:\Users\Admin\AppData\Local\Temp\c9c15c614ea8a43be81ad6da31b320a1577f142ee1ec84e498bede89d360bdb3.exe"
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of SetWindowsHookEx
              PID:984
        • C:\Windows\system32\taskhost.exe
          "taskhost.exe"
          1⤵
            PID:1128
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            1⤵
              PID:368

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • C:\Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • C:\Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • C:\Users\Admin\AppData\Local\Temp\tmp890f69e6.bat

              Filesize

              193B

              MD5

              66983dc69a5e6a712d03c7f6e6af39ce

              SHA1

              78e901bdf0d3d7669589a6f86309cee3fefef920

              SHA256

              3560fbb94525cb1269caf1c803e79e47317ad658695673cfaf0a582af9788382

              SHA512

              0c3744ca221d0a946884092321e923a0a8476e269256d9f75117caf68b065612e6a8338f6f9b3393eb4a94d9144a852e5188a36340e6686218e404a4e697b68e

            • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-4063495947-34355257-727531523-1000\699c4b9cdebca7aaea5193cae8a50098_8e28fefd-2db0-4dd4-85d7-665f2cf2c74b

              Filesize

              50B

              MD5

              5b63d4dd8c04c88c0e30e494ec6a609a

              SHA1

              884d5a8bdc25fe794dc22ef9518009dcf0069d09

              SHA256

              4d93c22555b3169e5c13716ca59b8b22892c69b3025aea841afe5259698102fd

              SHA512

              15ff8551ac6b9de978050569bcdc26f44dfc06a0eaf445ac70fd45453a21bdafa3e4c8b4857d6a1c3226f4102a639682bdfb71d7b255062fb81a51c9126896cb

            • C:\Users\Admin\AppData\Roaming\Uduby\gioc.exe

              Filesize

              312KB

              MD5

              1ec6a2a492e670274a3ce88030d6652f

              SHA1

              8d0d6e894432600bd28c26edc0230ad87cae1f5c

              SHA256

              e06e01844aa4d90202aadcfb4baac93b8df7f926d296a57ec7f916177b1d609d

              SHA512

              49391bf84e304818cc6aeda57bc51b6f1d0175f60b6a6deb8be3a5f23715a96e15736d42127878b7d787e657dc76ae8fd2f410e735f625e04db00d095be58b68

            • C:\Users\Admin\AppData\Roaming\Uduby\gioc.exe

              Filesize

              312KB

              MD5

              1ec6a2a492e670274a3ce88030d6652f

              SHA1

              8d0d6e894432600bd28c26edc0230ad87cae1f5c

              SHA256

              e06e01844aa4d90202aadcfb4baac93b8df7f926d296a57ec7f916177b1d609d

              SHA512

              49391bf84e304818cc6aeda57bc51b6f1d0175f60b6a6deb8be3a5f23715a96e15736d42127878b7d787e657dc76ae8fd2f410e735f625e04db00d095be58b68

            • C:\Users\Admin\AppData\Roaming\Uduby\gioc.exe

              Filesize

              312KB

              MD5

              1ec6a2a492e670274a3ce88030d6652f

              SHA1

              8d0d6e894432600bd28c26edc0230ad87cae1f5c

              SHA256

              e06e01844aa4d90202aadcfb4baac93b8df7f926d296a57ec7f916177b1d609d

              SHA512

              49391bf84e304818cc6aeda57bc51b6f1d0175f60b6a6deb8be3a5f23715a96e15736d42127878b7d787e657dc76ae8fd2f410e735f625e04db00d095be58b68

            • \Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • \Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • \Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • \Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • \Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • \Users\Admin\AppData\Local\Temp\7132194.exe

              Filesize

              312KB

              MD5

              c907917088779ac7dd2c35f1255846a0

              SHA1

              eecdc166d70455d180276f3cc592d92fe4659c90

              SHA256

              bcd73949ff5780c5dc60019c1d211bc926009b5fe81b47ee29fd88b05c87e200

              SHA512

              6cde845481acc502ac1a1baa64fc264bf3400b1fdb165971550081a7f8ccba8ee749e4994c3a61348b6048b06540842884078ad0891185897d1155d15090d0e1

            • \Users\Admin\AppData\Roaming\Uduby\gioc.exe

              Filesize

              312KB

              MD5

              1ec6a2a492e670274a3ce88030d6652f

              SHA1

              8d0d6e894432600bd28c26edc0230ad87cae1f5c

              SHA256

              e06e01844aa4d90202aadcfb4baac93b8df7f926d296a57ec7f916177b1d609d

              SHA512

              49391bf84e304818cc6aeda57bc51b6f1d0175f60b6a6deb8be3a5f23715a96e15736d42127878b7d787e657dc76ae8fd2f410e735f625e04db00d095be58b68

            • \Users\Admin\AppData\Roaming\Uduby\gioc.exe

              Filesize

              312KB

              MD5

              1ec6a2a492e670274a3ce88030d6652f

              SHA1

              8d0d6e894432600bd28c26edc0230ad87cae1f5c

              SHA256

              e06e01844aa4d90202aadcfb4baac93b8df7f926d296a57ec7f916177b1d609d

              SHA512

              49391bf84e304818cc6aeda57bc51b6f1d0175f60b6a6deb8be3a5f23715a96e15736d42127878b7d787e657dc76ae8fd2f410e735f625e04db00d095be58b68

            • memory/368-140-0x0000000001C80000-0x0000000001CA7000-memory.dmp

              Filesize

              156KB

            • memory/368-143-0x0000000001C80000-0x0000000001CA7000-memory.dmp

              Filesize

              156KB

            • memory/368-142-0x0000000001C80000-0x0000000001CA7000-memory.dmp

              Filesize

              156KB

            • memory/368-141-0x0000000001C80000-0x0000000001CA7000-memory.dmp

              Filesize

              156KB

            • memory/928-148-0x0000000000250000-0x0000000000277000-memory.dmp

              Filesize

              156KB

            • memory/928-147-0x0000000000250000-0x0000000000277000-memory.dmp

              Filesize

              156KB

            • memory/928-146-0x0000000000250000-0x0000000000277000-memory.dmp

              Filesize

              156KB

            • memory/984-79-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/984-75-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/984-66-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/984-67-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/984-69-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/984-73-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/984-70-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/1128-125-0x0000000001B90000-0x0000000001BB7000-memory.dmp

              Filesize

              156KB

            • memory/1128-122-0x0000000001B90000-0x0000000001BB7000-memory.dmp

              Filesize

              156KB

            • memory/1128-123-0x0000000001B90000-0x0000000001BB7000-memory.dmp

              Filesize

              156KB

            • memory/1128-124-0x0000000001B90000-0x0000000001BB7000-memory.dmp

              Filesize

              156KB

            • memory/1188-129-0x0000000000120000-0x0000000000147000-memory.dmp

              Filesize

              156KB

            • memory/1188-130-0x0000000000120000-0x0000000000147000-memory.dmp

              Filesize

              156KB

            • memory/1188-128-0x0000000000120000-0x0000000000147000-memory.dmp

              Filesize

              156KB

            • memory/1188-131-0x0000000000120000-0x0000000000147000-memory.dmp

              Filesize

              156KB

            • memory/1220-56-0x00000000765B1000-0x00000000765B3000-memory.dmp

              Filesize

              8KB

            • memory/1224-134-0x0000000002B00000-0x0000000002B27000-memory.dmp

              Filesize

              156KB

            • memory/1224-137-0x0000000002B00000-0x0000000002B27000-memory.dmp

              Filesize

              156KB

            • memory/1224-136-0x0000000002B00000-0x0000000002B27000-memory.dmp

              Filesize

              156KB

            • memory/1224-135-0x0000000002B00000-0x0000000002B27000-memory.dmp

              Filesize

              156KB

            • memory/1764-80-0x0000000000544000-0x0000000000573000-memory.dmp

              Filesize

              188KB

            • memory/1872-104-0x0000000000674000-0x00000000006A3000-memory.dmp

              Filesize

              188KB

            • memory/2004-151-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB

            • memory/2024-86-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB

            • memory/2024-88-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB

            • memory/2024-91-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB

            • memory/2024-89-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB

            • memory/2024-97-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB

            • memory/2024-96-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB

            • memory/2024-121-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB

            • memory/2024-85-0x0000000000400000-0x0000000000427000-memory.dmp

              Filesize

              156KB