Analysis

  • max time kernel
    93s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-01-2025 08:36

General

  • Target

    JaffaCakes118_63da91ae47b722d57e5c1ae562c52241.dll

  • Size

    510KB

  • MD5

    63da91ae47b722d57e5c1ae562c52241

  • SHA1

    7813d15aaa44edf7f1ddae94a8664f91eb1b17d0

  • SHA256

    738f2911f4786d927b4dc24f55edbbba8415cbcb7bb3c8fecbcea7cf4f170add

  • SHA512

    92b82f05685c8593713659c98db833342fbdb5041c82d641246dd4037441a427b5d1eb77b7cdb30b1b3202409fce2af346c36673985670f672aa1761e7089225

  • SSDEEP

    12288:eLWrIYvqnklSYARvJYi3zStRBoN37KQGOMqWnGFH0hNWsb:eLWrTqkorRv2i+tRiN37tvHUIQ

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 38 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63da91ae47b722d57e5c1ae562c52241.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1660
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63da91ae47b722d57e5c1ae562c52241.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5112
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:4116
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 204
              5⤵
              • Program crash
              PID:784
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2284
            • 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:1196
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4372 CREDAT:17416 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4064
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            4⤵
              PID:3900
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 204
                5⤵
                • Program crash
                PID:4880
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4360
              • C:\Program Files\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
                5⤵
                • Modifies Internet Explorer settings
                PID:2136
            • C:\Users\Admin\AppData\Local\Temp\ygliywtfahyyaiet.exe
              "C:\Users\Admin\AppData\Local\Temp\ygliywtfahyyaiet.exe"
              4⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:1600
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 608
            3⤵
            • Program crash
            PID:4780
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1840 -ip 1840
        1⤵
          PID:5008
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4116 -ip 4116
          1⤵
            PID:2988
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3900 -ip 3900
            1⤵
              PID:3484

            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

              30f59b20e935520badc298242cb4cff1

              SHA1

              00622b2054eb148a8459c2ccd0b22606c2d5c7f6

              SHA256

              4a981d199e551f2b8c8fa22f0e3fbc264e876e5ed243d83331b2a6083a753e3c

              SHA512

              f22ca09eb3266cee3f363e4f3f955745382679d136d61e7c27f81081cd77efa5f82f82220526928f73049e692b7c060f64032dfae0f967c579c6e6acfd2e8d21

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

              Filesize

              404B

              MD5

              afebcdd1f054ff917d9ed795bc22369a

              SHA1

              24af98db0fb209d9a19b6ee8807515e1c873d43c

              SHA256

              f8fe83f7097c5e1182f3efca1b464e059a97c8b67a3557afcdffad858385e628

              SHA512

              fcd0e64207745b35b0a4ef2193860545c22b45be51d03dd633cea357f2e92351e5f9497af88c5fb0c5c8944ad96b91a127dac5b7768aec6003bca68893b5b07f

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver56C6.tmp

              Filesize

              15KB

              MD5

              1a545d0052b581fbb2ab4c52133846bc

              SHA1

              62f3266a9b9925cd6d98658b92adec673cbe3dd3

              SHA256

              557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

              SHA512

              bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

              Filesize

              17KB

              MD5

              5a34cb996293fde2cb7a4ac89587393a

              SHA1

              3c96c993500690d1a77873cd62bc639b3a10653f

              SHA256

              c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

              SHA512

              e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

            • C:\Windows\SysWOW64\rundll32mgr.exe

              Filesize

              98KB

              MD5

              74a5197ac9806264925ff1f140242796

              SHA1

              59d0483c59c6a4fca85e72d30e656623a5266146

              SHA256

              8e28eca59b2bcc9933a4024b3adc5feed52a4615bdbc379b39008dc67c5364ae

              SHA512

              63976bd04c033a97659cdb5517b5eaa9b6119c6ce84f78ff5882a047c9f9f9d26b52e86b95c0709bf8d89a2120e8afb887e87ba5cb69adb4660fb6392919ad89

            • memory/1600-55-0x0000000000400000-0x000000000043B000-memory.dmp

              Filesize

              236KB

            • memory/1600-53-0x0000000000400000-0x000000000043A154-memory.dmp

              Filesize

              232KB

            • memory/1600-49-0x0000000000400000-0x000000000043B000-memory.dmp

              Filesize

              236KB

            • memory/1600-50-0x0000000000400000-0x000000000043A154-memory.dmp

              Filesize

              232KB

            • memory/1840-1-0x00000000756F0000-0x0000000075776000-memory.dmp

              Filesize

              536KB

            • memory/1840-15-0x00000000756F0000-0x0000000075776000-memory.dmp

              Filesize

              536KB

            • memory/4116-13-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

              Filesize

              4KB

            • memory/4116-14-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

              Filesize

              4KB

            • memory/5112-9-0x00000000005F0000-0x00000000005F1000-memory.dmp

              Filesize

              4KB

            • memory/5112-23-0x0000000000400000-0x000000000043A154-memory.dmp

              Filesize

              232KB

            • memory/5112-24-0x0000000000400000-0x000000000043A154-memory.dmp

              Filesize

              232KB

            • memory/5112-25-0x0000000077D12000-0x0000000077D13000-memory.dmp

              Filesize

              4KB

            • memory/5112-18-0x0000000000400000-0x000000000043A154-memory.dmp

              Filesize

              232KB

            • memory/5112-22-0x0000000077D12000-0x0000000077D13000-memory.dmp

              Filesize

              4KB

            • memory/5112-16-0x0000000000400000-0x000000000043B000-memory.dmp

              Filesize

              236KB

            • memory/5112-8-0x00000000005E0000-0x00000000005E1000-memory.dmp

              Filesize

              4KB

            • memory/5112-12-0x0000000000400000-0x000000000043A154-memory.dmp

              Filesize

              232KB

            • memory/5112-11-0x0000000000400000-0x000000000043A154-memory.dmp

              Filesize

              232KB

            • memory/5112-6-0x0000000000400000-0x000000000043B000-memory.dmp

              Filesize

              236KB

            • memory/5112-56-0x0000000000400000-0x000000000043B000-memory.dmp

              Filesize

              236KB

            • memory/5112-4-0x0000000000400000-0x000000000043A154-memory.dmp

              Filesize

              232KB