Analysis

  • max time kernel
    94s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 07:06

General

  • Target

    JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll

  • Size

    266KB

  • MD5

    4ba847a6abe88d2de84696ff36105dd0

  • SHA1

    08c50f7fa556edb73e12751bf46fcb165451cdf6

  • SHA256

    0f14252aa4405954d45e4848dd68be218e67fc66ac7e2f833fce8f20b34dcaa5

  • SHA512

    6bbe18cce4d4059e22bb567b79c494688182782dfa73d3053922f0351bfd0ca274c2edf1d8b2954bce5fe17e8ee683ca33ca031e5e48ac8ac9093b1cc4b7dfcd

  • SSDEEP

    3072:fHIbZrZeazcZgbAr0uiND880HlTJT5I0tdQu7Pd8Y2Lyp0lFmy/p/yr9rn10Dfww:7aGgcJipRuQQppQFmgY+4aQ1kmIW

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 5 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 32 IoCs
  • Modifies registry class 29 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3196
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:372
      • C:\Windows\SysWOW64\regsvr32Srv.exe
        C:\Windows\SysWOW64\regsvr32Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1092
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2156
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1772
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1772 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:3720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    febff5e5b64433316ee5f116c5c14309

    SHA1

    55a533777edeed0d18304f073d59d5ca1e5c7737

    SHA256

    888dd735b3cf97e714243c7ecf44064128c4a97452b90ebbc66e317a113ef9a4

    SHA512

    cbadeca5bbd2528b4af7ad6d053483adac27db83bfcd8b75312a5aa4b09302f729b67a04bbb9af840cb3abd78ec668b5a6c8746685ba0f15780b5e0ea3dd88d8

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    7fd715bbce757a107a09742b37b761e7

    SHA1

    52808babb41003667fc2d36bf64881de4c8a107b

    SHA256

    e6082eb28d5e2a5b74a833e241cdbf57528fe190d50a3baea5750d172ab42827

    SHA512

    a45d6bf021d43983945d79179b523491a4288f3457cf3695a546265537bb2f413ba5ec1f30d7fa53bd06caa5764fa933687c8ed52b44def7ffd6699a8b6b56e8

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver38FD.tmp

    Filesize

    15KB

    MD5

    1a545d0052b581fbb2ab4c52133846bc

    SHA1

    62f3266a9b9925cd6d98658b92adec673cbe3dd3

    SHA256

    557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

    SHA512

    bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Windows\SysWOW64\regsvr32Srv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/372-0-0x0000000010000000-0x0000000010049000-memory.dmp

    Filesize

    292KB

  • memory/1092-4-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1092-8-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1092-6-0x0000000000480000-0x000000000048F000-memory.dmp

    Filesize

    60KB

  • memory/2156-12-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2156-15-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2156-14-0x0000000000560000-0x0000000000561000-memory.dmp

    Filesize

    4KB