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Analysis

  • max time kernel
    133s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2022, 15:55

General

  • Target

    990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe

  • Size

    399KB

  • MD5

    fcd741cfc67a456ea3ab81d9919ae5fd

  • SHA1

    265e7e07cdf5f4ac9bbd14750d854c9038ad3ac5

  • SHA256

    990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40

  • SHA512

    b98a7dbfe4b3bc900d292f215756b4db61e8a2e774f63bb255956d9989a8d55d6d900fe5d8727e4f4f265f0de761795ff622bb108dd0cb814ecbf46d5fea0063

  • SSDEEP

    6144:BBgh/58KGip9lmh0UwwDdxtPw13OyhFR8uHwqVGfOjB3RDnVh7WQ:BBMmKGnhDT+JlCIXRDnfWQ

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • UPX packed file 7 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 30 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe
    "C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:864
    • C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe
      "C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:960
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1768
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:820
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:820 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1724
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:820 CREDAT:275472 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1084
      • C:\Windows\svcr.exe
        "C:\Windows\svcr.exe" "C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:628
        • C:\Windows\svcr.exe
          "C:\Windows\svcr.exe"
          4⤵
          • Executes dropped EXE
          • Modifies Installed Components in the registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:964
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:536
            • C:\Program Files\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
              6⤵
                PID:1500

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\AM2DM90W.txt

      Filesize

      608B

      MD5

      d2d88e4b16fc6a0f6414d3521df44a4d

      SHA1

      2fe45a69a471cc5918a268f81913f7c9ba305b62

      SHA256

      5aeb58d2fc5df5d315d60b81ad229b8cf7f2fa9ae83c2a6c15bf291e83d40251

      SHA512

      f111d005e6e47222d97de0b0c3f3ce04afff54f7eb90b866e12acc70a4d6b64f8051c59478c8e4d8b4a5d1bb45dddc19cddac2e5e2861385dedbbcda727233d8

    • C:\Windows\svcr.exe

      Filesize

      399KB

      MD5

      fcd741cfc67a456ea3ab81d9919ae5fd

      SHA1

      265e7e07cdf5f4ac9bbd14750d854c9038ad3ac5

      SHA256

      990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40

      SHA512

      b98a7dbfe4b3bc900d292f215756b4db61e8a2e774f63bb255956d9989a8d55d6d900fe5d8727e4f4f265f0de761795ff622bb108dd0cb814ecbf46d5fea0063

    • C:\Windows\svcr.exe

      Filesize

      399KB

      MD5

      fcd741cfc67a456ea3ab81d9919ae5fd

      SHA1

      265e7e07cdf5f4ac9bbd14750d854c9038ad3ac5

      SHA256

      990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40

      SHA512

      b98a7dbfe4b3bc900d292f215756b4db61e8a2e774f63bb255956d9989a8d55d6d900fe5d8727e4f4f265f0de761795ff622bb108dd0cb814ecbf46d5fea0063

    • C:\Windows\svcr.exe

      Filesize

      399KB

      MD5

      fcd741cfc67a456ea3ab81d9919ae5fd

      SHA1

      265e7e07cdf5f4ac9bbd14750d854c9038ad3ac5

      SHA256

      990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40

      SHA512

      b98a7dbfe4b3bc900d292f215756b4db61e8a2e774f63bb255956d9989a8d55d6d900fe5d8727e4f4f265f0de761795ff622bb108dd0cb814ecbf46d5fea0063

    • memory/628-103-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/628-77-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/864-55-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/864-56-0x0000000003400000-0x00000000034A8000-memory.dmp

      Filesize

      672KB

    • memory/864-54-0x0000000075141000-0x0000000075143000-memory.dmp

      Filesize

      8KB

    • memory/864-78-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/960-61-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-63-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-71-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-74-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-66-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-64-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-70-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-62-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-57-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-60-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/960-58-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/964-102-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/964-95-0x0000000010410000-0x000000001042E000-memory.dmp

      Filesize

      120KB