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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 20:03

General

  • Target

    b9884f6268744008969c80e4fb0f02a6.exe

  • Size

    98KB

  • MD5

    b9884f6268744008969c80e4fb0f02a6

  • SHA1

    8a02b168d3c8d9e1185a4fe73bde17df080b3c83

  • SHA256

    c67ebc49712b01dec338430393dedb7e86edf432caa7e6ac592e27e8cbba3607

  • SHA512

    4fc17c63c1922e0765ff08dbb67ede69d2f231f8b5a715361372ee7168e28ac9722b82eec500af602a2e28473ebe88ec60aaeb8c49b8a6189ec92aa403af6e38

  • SSDEEP

    3072:+fsWsyb6/32LMzo8k0w9ZhtOGik8jwaaHw7Koj4rD8rmavLN:msWsyOlhkZhtbkVvL

Malware Config

Signatures

  • Ramnit

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 38 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9884f6268744008969c80e4fb0f02a6.exe
    "C:\Users\Admin\AppData\Local\Temp\b9884f6268744008969c80e4fb0f02a6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:4104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4104 -s 208
          3⤵
          • Program crash
          PID:5904
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2848
        • 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:1948
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1948 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:5600
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1948 CREDAT:17416 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2396
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:2976
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2976 -s 208
            3⤵
            • Program crash
            PID:4000
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:768
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:1336
        • C:\Users\Admin\AppData\Local\Temp\acqspwjaacyjdpag.exe
          "C:\Users\Admin\AppData\Local\Temp\acqspwjaacyjdpag.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:5372
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4104 -ip 4104
        1⤵
          PID:5724
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2976 -ip 2976
          1⤵
            PID:3516

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verD5ED.tmp

            Filesize

            15KB

            MD5

            1a545d0052b581fbb2ab4c52133846bc

            SHA1

            62f3266a9b9925cd6d98658b92adec673cbe3dd3

            SHA256

            557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

            SHA512

            bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PL0BY74L\suggestions[1].en-US

            Filesize

            17KB

            MD5

            5a34cb996293fde2cb7a4ac89587393a

            SHA1

            3c96c993500690d1a77873cd62bc639b3a10653f

            SHA256

            c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

            SHA512

            e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

            Filesize

            98KB

            MD5

            b9884f6268744008969c80e4fb0f02a6

            SHA1

            8a02b168d3c8d9e1185a4fe73bde17df080b3c83

            SHA256

            c67ebc49712b01dec338430393dedb7e86edf432caa7e6ac592e27e8cbba3607

            SHA512

            4fc17c63c1922e0765ff08dbb67ede69d2f231f8b5a715361372ee7168e28ac9722b82eec500af602a2e28473ebe88ec60aaeb8c49b8a6189ec92aa403af6e38

          • memory/1556-4-0x0000000000400000-0x0000000000439DE0-memory.dmp

            Filesize

            231KB

          • memory/1556-2-0x0000000000400000-0x0000000000439DE0-memory.dmp

            Filesize

            231KB

          • memory/1556-0-0x0000000000400000-0x0000000000439DE0-memory.dmp

            Filesize

            231KB

          • memory/1556-8-0x0000000000A20000-0x0000000000A21000-memory.dmp

            Filesize

            4KB

          • memory/1556-7-0x0000000077192000-0x0000000077193000-memory.dmp

            Filesize

            4KB

          • memory/1556-6-0x0000000000A10000-0x0000000000A11000-memory.dmp

            Filesize

            4KB

          • memory/1556-1-0x0000000000432000-0x000000000043A000-memory.dmp

            Filesize

            32KB

          • memory/1556-12-0x0000000000400000-0x0000000000439DE0-memory.dmp

            Filesize

            231KB

          • memory/1556-16-0x0000000000400000-0x0000000000439DE0-memory.dmp

            Filesize

            231KB

          • memory/1556-18-0x0000000000400000-0x0000000000439DE0-memory.dmp

            Filesize

            231KB

          • memory/1556-19-0x0000000077192000-0x0000000077193000-memory.dmp

            Filesize

            4KB

          • memory/1556-3-0x0000000000A00000-0x0000000000A02000-memory.dmp

            Filesize

            8KB

          • memory/4104-10-0x0000000000EE0000-0x0000000000EE1000-memory.dmp

            Filesize

            4KB

          • memory/4104-11-0x0000000000EC0000-0x0000000000EC1000-memory.dmp

            Filesize

            4KB

          • memory/5372-40-0x0000000000400000-0x0000000000439DE0-memory.dmp

            Filesize

            231KB

          • memory/5372-42-0x0000000000680000-0x0000000000682000-memory.dmp

            Filesize

            8KB

          • memory/5372-44-0x0000000000400000-0x0000000000439DE0-memory.dmp

            Filesize

            231KB