Analysis

  • max time kernel
    104s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/04/2025, 06:52

General

  • Target

    JaffaCakes118_b3e25a8d0815d7d4bf31d6d28c6b9a8b.dll

  • Size

    2.4MB

  • MD5

    b3e25a8d0815d7d4bf31d6d28c6b9a8b

  • SHA1

    cfacd87ad17a33ef1890111b398c76387f003432

  • SHA256

    428a997315690a32b5d601cce32f6074464fdb4566426832c2055ef484de027f

  • SHA512

    124d229a2f22c4def3f8e5ff64d5cf0ad5804adab22ec60fc9c3c02a5e73aa304dc9a25de42eb50d1393d448ff226dbecd75c70b13769123c28f9df60d50679d

  • SSDEEP

    49152:B3pp9ziy5bRCrEaoWzw7ai91wgvTBBsCkh9Sp3BVcmUG8lFN6ijGUKYsVMLz6onI:B3pv+y5dIVs7aWPvTBBKh9UBVc/ln16d

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 11 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3e25a8d0815d7d4bf31d6d28c6b9a8b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3104
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3e25a8d0815d7d4bf31d6d28c6b9a8b.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5444
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:5960
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • 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:224
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:5564
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 5564 -s 204
                6⤵
                • Program crash
                PID:6124
            • 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:6136
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:6136 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:980
            • 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:4440
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4440 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:388
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5444 -s 628
          3⤵
          • Program crash
          PID:3276
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5444 -ip 5444
      1⤵
        PID:5112
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5564 -ip 5564
        1⤵
          PID:3592

        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

          15edd1b18d01ba2a613d62919ed706ab

          SHA1

          702cd3e62466b46eaa362e11fdeb5add76ba97f1

          SHA256

          beecd9f01075baf462dfc3e075918ee42b914d03e6704f94fe1a41526a6f0f72

          SHA512

          9176a541226bb43e5ff8ef7dcb558e44776e788ff80aff00b3ea8715a64d850b714586aafb0bdd1bac5d24b85357367a991915b89818242fb693f54edf7859f0

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

          Filesize

          412B

          MD5

          d838255041aac95ef04a0179a8c2ec40

          SHA1

          11e60cc688e85fd0f75e76cc23f3e6be87c8a362

          SHA256

          16e2fe60493632138299105e413d235cd69d892fb2c7577abbb1a0c268bdfa19

          SHA512

          fddfe3a56a07861e2c65787f18060186e92a1cd59e859ec5d03887f712205ff5dcfbeb263236d4690285ee012337c1e8e2630f87fa28e2f6a30b388bef89342b

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

          Filesize

          412B

          MD5

          d894cee5b690efd1517b9fc564da5ddb

          SHA1

          4a22435ad0e6ee65bacf4093cfbeb6474d8fac57

          SHA256

          10f5c4b536a9c2922be72c1dadbf27d555e770d0806086e1821b29c756aec963

          SHA512

          7537dcc940e388d8d1b8f511ba475cd48ccec2b3376831cd179f5d24424dfbd81a617b68bf19ba7cb4e79aa24112a8b7dde92bc376836bfc758f59fc2e15716e

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{D1B36E80-1833-11F0-9A21-EE5EE1E3FD33}.dat

          Filesize

          3KB

          MD5

          4d464eb7b29da95de40b748f92713f1d

          SHA1

          76bf01a0fee196524eed560f2b2ab6f6067ff3ae

          SHA256

          01a5a64ba998f53ab19029bda84a7b4b9e903836343bf377e9a732e0d68a52c3

          SHA512

          cea4f5e4b0c4ca343d7391a24c7d54e3ed02f483a0cdb67936b92c6464dac383363d1d57a30f0db6682a003c810f24a1f5413dbec52bfa723a5e8214bfeb8cac

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{D1B5D08E-1833-11F0-9A21-EE5EE1E3FD33}.dat

          Filesize

          5KB

          MD5

          41954d309472d462d95b7490a053d97f

          SHA1

          e2dd54f1334420647b77e8c610077617d4e404c6

          SHA256

          d0c71ad90641629027d6b01116c0d0ebf177465df15b6a278edf5b7a521fda34

          SHA512

          77c1aaaf87be7d583dfb2791a97ab16cff94787e254e1671c9b33442f49a290dd4f2ea1bfb26380da692fe74c7dce6fce1435c8f5d3577ec5145ab5f6dc0ad0c

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\SPOS9D3T\suggestions[1].en-US

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • C:\Windows\SysWOW64\rundll32mgr.exe

          Filesize

          60KB

          MD5

          94f2f6ffbba8e7644668b51b39983916

          SHA1

          63357bbdf90101969117983dbc0d4ed0e713c4d7

          SHA256

          ede7603855cb37082c241c720a6650988c684eb3bcb263e5dd7b457458940fed

          SHA512

          d04430ceac70c6fa71d07d9ee82ac2bb5e6c0641d5c9e7e5a3ed39d342e8b198f367676516a55f0653e0b88635a027b9ad220e223145b8be8df281bb6faf7156

        • memory/224-36-0x0000000077732000-0x0000000077733000-memory.dmp

          Filesize

          4KB

        • memory/224-40-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/224-42-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/224-38-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/224-37-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/224-28-0x0000000000900000-0x0000000000901000-memory.dmp

          Filesize

          4KB

        • memory/224-31-0x0000000077732000-0x0000000077733000-memory.dmp

          Filesize

          4KB

        • memory/224-30-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5444-1-0x0000000074F30000-0x000000007519F000-memory.dmp

          Filesize

          2.4MB

        • memory/5444-35-0x0000000074F30000-0x000000007519F000-memory.dmp

          Filesize

          2.4MB

        • memory/5564-34-0x0000000000A10000-0x0000000000A11000-memory.dmp

          Filesize

          4KB

        • memory/5564-33-0x0000000000A80000-0x0000000000A81000-memory.dmp

          Filesize

          4KB

        • memory/5960-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5960-6-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5960-5-0x0000000000401000-0x0000000000404000-memory.dmp

          Filesize

          12KB

        • memory/5960-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5960-9-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5960-25-0x0000000000401000-0x0000000000404000-memory.dmp

          Filesize

          12KB

        • memory/5960-12-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5960-16-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5960-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5960-10-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/5960-11-0x00000000001A0000-0x00000000001A1000-memory.dmp

          Filesize

          4KB