Analysis

  • max time kernel
    104s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250410-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2025, 09:53

General

  • Target

    JaffaCakes118_b9a225077668078c82787f02091fa841.dll

  • Size

    309KB

  • MD5

    b9a225077668078c82787f02091fa841

  • SHA1

    1d3b8681a5c04965938175cb1ea792c9370cce6d

  • SHA256

    94a3a00de6c87443a0941e089cb0db04674a6c0094ddef85a48baf61dfc7654c

  • SHA512

    ace70fdd277424d4df1ecc227a5ea95d9fe11ac742eeef5b998dfca65092ef391019d391b5c0e97fb098bf5eeac24d5ea14462fdd4e61b5bafbc70510ee6249c

  • SSDEEP

    6144:W25rerE2hT+XUanF8NTQ84rDuYvGnZtDX1qZzpRbwk2:nIwe+UaTwEZzpRbo

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 9 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 20 IoCs
  • Modifies registry class 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b9a225077668078c82787f02091fa841.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b9a225077668078c82787f02091fa841.dll
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:5192
        • 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:5664
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5664 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4884

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\Y4XTGLE2\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Windows\SysWOW64\regsvr32mgr.exe

    Filesize

    54KB

    MD5

    fba9053e3a7f286a68a072f5d1b57b42

    SHA1

    19c4800e8de1e83ff7bf0b96a96563e8430ce9f3

    SHA256

    5675295a26c3839803fd25fb667f2be09c2b6bf3412202a09c3dfc9a46eb4ca4

    SHA512

    ee53bbd9531801df780279da49bd34863513db67fbacbd6b0abb844d02cb76f5e86ed39ad28585b27aa42d3659a8fc9f3d1459f92f81eca970e69bac7c403c64

  • memory/1512-1-0x00000000008C0000-0x0000000000911000-memory.dmp

    Filesize

    324KB

  • memory/5192-14-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5192-13-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5192-17-0x0000000077812000-0x0000000077813000-memory.dmp

    Filesize

    4KB

  • memory/5192-16-0x0000000000880000-0x0000000000881000-memory.dmp

    Filesize

    4KB

  • memory/5192-15-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5192-8-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5192-12-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5192-11-0x0000000000820000-0x0000000000821000-memory.dmp

    Filesize

    4KB

  • memory/5192-10-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5192-7-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5192-18-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/5192-20-0x0000000077812000-0x0000000077813000-memory.dmp

    Filesize

    4KB

  • memory/5192-6-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB