Analysis

  • max time kernel
    105s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/04/2025, 06:10

General

  • Target

    JaffaCakes118_b6d616d61ef4b2965622683c3f214c42.dll

  • Size

    168KB

  • MD5

    b6d616d61ef4b2965622683c3f214c42

  • SHA1

    b95d1e6326c1dca4e5822d83a79878c5b94b26bd

  • SHA256

    064b30d137086814bbf1b1c0a5c4268d789b1c61ed84d54d17eec7deeaa0a6ba

  • SHA512

    b6cb695d14f97d754ab0a36d1278e7958c1089f13f36ec334d202806b25a4c6269200a186b30aff8a279a0a2340854fb584bc1231d1b564e36be44f6705ee286

  • SSDEEP

    3072:wbEn+F/nWtpFYLnH5Nj6D+yvl1GSp1OaJq2fM9ikt:KPiYLnHD6Kyz/12Is

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 6 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 20 IoCs
  • Modifies registry class 64 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_b6d616d61ef4b2965622683c3f214c42.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6d616d61ef4b2965622683c3f214c42.dll
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3028
      • 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:5276
        • 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:6064
          • 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:4372
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4372 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:5524

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

    Filesize

    471B

    MD5

    aac5d834f9970aca83b3cb5d87d7570d

    SHA1

    c43cfac3b22721fe6f03d426b00f7144103e8708

    SHA256

    aefc9ddce439528c6fd08aa05a47102592ec3b793d8f707cd75e33d52b1c51eb

    SHA512

    4e3a3e442bb17463990c4074b739f39a5c7e2de756b403cfc9107d46b00d796ef9e02ab030314685e8341bd996a6425d2fdaf18738c234dc3d428856373dc623

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

    Filesize

    412B

    MD5

    82933d15610cc30736a0efbdf943e380

    SHA1

    2e921c4d8889df3a61c09d723c99341bb7cf78e2

    SHA256

    0a9590dd27516efce1077e93fd6b8190e6cb9be8b497eea6ad3956659f1005dd

    SHA512

    03538e520630b9043e06eb84c80739afee2b9b4eb01aaa536f085f7d03a541cea1305b4c5ce2d830e67bc29a4533f54cf18cf87b848433f24411483ce3b40da7

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\MSRA1ROA\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/3028-0-0x0000000010000000-0x000000001002C000-memory.dmp

    Filesize

    176KB

  • memory/5276-4-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/5276-5-0x0000000000580000-0x000000000058F000-memory.dmp

    Filesize

    60KB

  • memory/5276-7-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/6064-15-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/6064-14-0x0000000000510000-0x0000000000511000-memory.dmp

    Filesize

    4KB

  • memory/6064-17-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/6064-13-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB