Analysis

  • max time kernel
    90s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/04/2024, 05:30

General

  • Target
    e9542e7a94aca41bef653079bfbe5404_JaffaCakes118.exe
  • Size 95KB
  • Sample240409-f643esbc4v
  • SHA256 3e40ba4fb12263b409abe378e0bc13dbcec11494457e2ffb12f845457aba8347
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 13 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 48 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 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\e9542e7a94aca41bef653079bfbe5404_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e9542e7a94aca41bef653079bfbe5404_JaffaCakes118.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2300
    • 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:3340
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
          PID:2924
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 208
            4⤵
            • Program crash
            PID:3476
        • 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:4864
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4864 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4400
        • 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:4376
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4376 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:5052
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2924 -ip 2924
      1⤵
        PID:1904

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            WaterMark.exe

            • Path C:\Program Files (x86)\Microsoft\WaterMark.exe
            • Size 95KB
            • SHA256 3e40ba4fb12263b409abe378e0bc13dbcec11494457e2ffb12f845457aba8347
            • MD5 SHA1 SHA512 SSDEEP

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 471B
            • SHA256 885889906cf0a34f41de313074d706b129d988dc1d8b944dbdcf4e1d4e460b77
            • MD5 SHA1 SHA512

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 404B
            • SHA256 e897a49b2f412ec975d9b4f1116654b3647ea62f4be0adb86691f681b2d50814
            • MD5 SHA1 SHA512

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 404B
            • SHA256 f300e6f4dce73834f7777d1a40e2385351e417d7cc3e1a820d410ae85ed46505
            • MD5 SHA1 SHA512

            en-US.1

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\DomainSuggestions\en-US.1
            • Size 17KB
            • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
            • MD5 SHA1 SHA512 SSDEEP

            RecoveryStore.{39FE6CAA-F632-11EE-BD28-72AC86130FB1}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{39FE6CAA-F632-11EE-BD28-72AC86130FB1}.dat
            • Size 5KB
            • SHA256 aa8fe313ffa906920d59cf4cb6af5a36c09edad31a72262f377e09f3e89d437a
            • MD5 SHA1 SHA512 SSDEEP

            RecoveryStore.{3A03317C-F632-11EE-BD28-72AC86130FB1}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{3A03317C-F632-11EE-BD28-72AC86130FB1}.dat
            • Size 3KB
            • SHA256 2b235178dd47a82031187a439d6d857ac069093851222423ef66614fff310237
            • MD5 SHA1 SHA512

            verD061.tmp

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verD061.tmp
            • Size 15KB
            • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
            • MD5 SHA1 SHA512 SSDEEP

            memory/2300-9-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2300-11-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2300-8-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2300-3-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2300-7-0x00000000008D0000-0x00000000008D1000-memory.dmp

            memory/2300-6-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2300-0-0x0000000000400000-0x0000000000442000-memory.dmp

            memory/2300-5-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2300-1-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2924-29-0x0000000001090000-0x0000000001091000-memory.dmp

            memory/2924-30-0x0000000001070000-0x0000000001071000-memory.dmp

            memory/3340-28-0x00000000776B2000-0x00000000776B3000-memory.dmp

            memory/3340-32-0x00000000776B2000-0x00000000776B3000-memory.dmp

            memory/3340-35-0x0000000000400000-0x0000000000442000-memory.dmp

            memory/3340-36-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3340-37-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3340-31-0x0000000000070000-0x0000000000071000-memory.dmp

            memory/3340-23-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3340-26-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3340-24-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3340-25-0x0000000000430000-0x0000000000431000-memory.dmp