Analysis

  • max time kernel
    133s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/06/2024, 08:21

General

  • Target
    154dd7d9638995072c2c78ab478a3043_JaffaCakes118.exe
  • Size 166KB
  • Sample240627-j9bf3atcpl
  • SHA256 9fcc3b77d2085e60800e7f6e61e87d494c5b9bab5903135230f21b24df4aa67d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 11 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 51 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 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\154dd7d9638995072c2c78ab478a3043_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\154dd7d9638995072c2c78ab478a3043_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4632
    • C:\Users\Admin\AppData\Local\Temp\154dd7d9638995072c2c78ab478a3043_JaffaCakes118mgr.exe
      C:\Users\Admin\AppData\Local\Temp\154dd7d9638995072c2c78ab478a3043_JaffaCakes118mgr.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4896
      • C:\Program Files (x86)\Microsoft\WaterMark.exe
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:4748
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:4144
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 204
              5⤵
              • Program crash
              PID:2896
          • 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:1872
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1872 CREDAT:17410 /prefetch:2
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:3732
          • 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:1304
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1304 CREDAT:17410 /prefetch:2
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4144 -ip 4144
      1⤵
        PID:412

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            RecoveryStore.{4964F66A-345E-11EF-9D11-4E0B5964A968}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{4964F66A-345E-11EF-9D11-4E0B5964A968}.dat
            • Size 5KB
            • SHA256 6ec27de85c14ae017c1bda8401fcc2e25d0b245ce7d13b71059227120f3e681a
            • MD5 SHA1 SHA512 SSDEEP

            RecoveryStore.{496757B7-345E-11EF-9D11-4E0B5964A968}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{496757B7-345E-11EF-9D11-4E0B5964A968}.dat
            • Size 4KB
            • SHA256 9297cb78ad50132dbde39757782840a29c9692f91597c56427b0083731b52d2c
            • MD5 SHA1 SHA512 SSDEEP

            verEFEE.tmp

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

            suggestions[1].en-US

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\QQACG5HD\suggestions[1].en-US
            • Size 17KB
            • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
            • MD5 SHA1 SHA512 SSDEEP

            154dd7d9638995072c2c78ab478a3043_JaffaCakes118mgr.exe

            • Path C:\Users\Admin\AppData\Local\Temp\154dd7d9638995072c2c78ab478a3043_JaffaCakes118mgr.exe
            • Size 96KB
            • SHA256 528d190fc376cff62a83391a5ba10ae4ef0c02bedabd0360274ddc2784e11da3
            • MD5 SHA1 SHA512 SSDEEP

            memory/4144-34-0x00000000008C0000-0x00000000008C1000-memory.dmp

            memory/4144-35-0x00000000008A0000-0x00000000008A1000-memory.dmp

            memory/4632-5-0x00000000006F0000-0x000000000071C000-memory.dmp

            memory/4632-0-0x00000000006F0000-0x000000000071C000-memory.dmp

            memory/4748-37-0x0000000000070000-0x0000000000071000-memory.dmp

            memory/4748-40-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4748-41-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4748-31-0x0000000000060000-0x0000000000061000-memory.dmp

            memory/4748-30-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4748-29-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4748-33-0x0000000077442000-0x0000000077443000-memory.dmp

            memory/4748-36-0x0000000077442000-0x0000000077443000-memory.dmp

            memory/4896-7-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4896-8-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4896-13-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4896-9-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4896-10-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4896-14-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4896-15-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4896-11-0x00000000014C0000-0x00000000014C1000-memory.dmp

            memory/4896-6-0x0000000000400000-0x0000000000435000-memory.dmp