Analysis

  • max time kernel
    133s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2022 07:51

General

  • Target

    a7d3646fa55e0376d25098e9089f9adb5d393ace8af96699d8bcf1c34a08e9bd.exe

  • Size

    112KB

  • MD5

    1316fa6109bf8bcd8339c4454a38248a

  • SHA1

    9463f53b89ad96d6dea76daa7e57c1ce2ee9622f

  • SHA256

    a7d3646fa55e0376d25098e9089f9adb5d393ace8af96699d8bcf1c34a08e9bd

  • SHA512

    0b91370d6fd6bddda70e10f22ee448f1e392b075d6da78e22d742acb8663b25dd2ffb92ee8bf95d73fe1c5ee7cd30a7718a593c8157c4ac0d7d75393ac4c8e6a

  • SSDEEP

    1536:BVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:RnxwgxgfR/DVG7wBpE

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 49 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7d3646fa55e0376d25098e9089f9adb5d393ace8af96699d8bcf1c34a08e9bd.exe
    "C:\Users\Admin\AppData\Local\Temp\a7d3646fa55e0376d25098e9089f9adb5d393ace8af96699d8bcf1c34a08e9bd.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
          PID:2440
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2440 -s 204
            4⤵
            • Program crash
            PID:1660
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4220
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4220 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4936
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4048
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4048 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2204
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2440 -ip 2440
      1⤵
        PID:3484
      • C:\Windows\System32\svchost.exe
        C:\Windows\System32\svchost.exe -k netsvcs -p
        1⤵
        • Drops file in System32 directory
        • Checks processor information in registry
        • Enumerates system info in registry
        PID:4920

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Microsoft\WaterMark.exe

        Filesize

        112KB

        MD5

        1316fa6109bf8bcd8339c4454a38248a

        SHA1

        9463f53b89ad96d6dea76daa7e57c1ce2ee9622f

        SHA256

        a7d3646fa55e0376d25098e9089f9adb5d393ace8af96699d8bcf1c34a08e9bd

        SHA512

        0b91370d6fd6bddda70e10f22ee448f1e392b075d6da78e22d742acb8663b25dd2ffb92ee8bf95d73fe1c5ee7cd30a7718a593c8157c4ac0d7d75393ac4c8e6a

      • C:\Program Files (x86)\Microsoft\WaterMark.exe

        Filesize

        112KB

        MD5

        1316fa6109bf8bcd8339c4454a38248a

        SHA1

        9463f53b89ad96d6dea76daa7e57c1ce2ee9622f

        SHA256

        a7d3646fa55e0376d25098e9089f9adb5d393ace8af96699d8bcf1c34a08e9bd

        SHA512

        0b91370d6fd6bddda70e10f22ee448f1e392b075d6da78e22d742acb8663b25dd2ffb92ee8bf95d73fe1c5ee7cd30a7718a593c8157c4ac0d7d75393ac4c8e6a

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{F8790B11-5DBA-11ED-AECB-E64E24383C5C}.dat

        Filesize

        5KB

        MD5

        195999a214009a46996f2e96dc881960

        SHA1

        e2de1258fdd46489ca5e349da970a01b78e29c33

        SHA256

        0849caec18d4600c5f05de8e116080b8b1f1273fb34dadee4d3d5afb7201cc1b

        SHA512

        4ec1910c50e6fc68ba87a3e76c5c335648f91de997d6145bfbef66fdf706546afcb289adb2461e22fcd388c8b915e4a44aa6b4377c8ae50974867c0a5165491c

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{F8793221-5DBA-11ED-AECB-E64E24383C5C}.dat

        Filesize

        3KB

        MD5

        91aa75ec1e7fe9d8754e692493c0d2be

        SHA1

        dbdf842007b44738f100039104fe1db937a22fed

        SHA256

        2bd732e14f823e689a12e43e989310eea8fd5d8fca7f3c63c223618d4152e57a

        SHA512

        e3cafebe9b4f788ec3f1a74a2dd47869bc9432e223567d76bf024a5a6a01c87b5614a2822b1378ff63703330d0d456b2e02dfbbcda05183bee7b87a611106129

      • memory/1544-135-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1544-136-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1544-132-0x0000000000400000-0x0000000000467000-memory.dmp

        Filesize

        412KB

      • memory/1544-140-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2660-150-0x0000000000400000-0x0000000000467000-memory.dmp

        Filesize

        412KB

      • memory/2660-149-0x0000000000400000-0x0000000000467000-memory.dmp

        Filesize

        412KB

      • memory/2660-148-0x0000000000400000-0x0000000000467000-memory.dmp

        Filesize

        412KB

      • memory/2660-147-0x0000000000400000-0x0000000000467000-memory.dmp

        Filesize

        412KB

      • memory/2660-153-0x0000000000400000-0x0000000000467000-memory.dmp

        Filesize

        412KB

      • memory/2660-154-0x0000000000400000-0x0000000000467000-memory.dmp

        Filesize

        412KB

      • memory/2660-155-0x0000000000400000-0x0000000000467000-memory.dmp

        Filesize

        412KB

      • memory/2660-156-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB