Analysis

  • max time kernel
    95s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-01-2025 12:42

General

  • Target

    JaffaCakes118_c81fd03698ac39336710545a59e31fdc.exe

  • Size

    95KB

  • MD5

    c81fd03698ac39336710545a59e31fdc

  • SHA1

    836b52d47757d6875564aa481ba87dee50134bd3

  • SHA256

    1e7e7c06c63d3cf8626579a3bec0aa11bb15b43a65313d5ec8bf86afaad69fe0

  • SHA512

    9e64e5e199a8e385e386dbfca7ee0780f786e00b9601c7d785b057fc2c42ab9d8fba0ac7857176f262d1ea2ea1fec07e445967d2ce219e2c822a64d9d85df604

  • SSDEEP

    768:i06R0UKzOgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9Y:oR0vxn3Pc0LCH9MtbvabUDzJYWu3B

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 1 IoCs
  • UPX packed file 12 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 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 45 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c81fd03698ac39336710545a59e31fdc.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c81fd03698ac39336710545a59e31fdc.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      2⤵
      • 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:2684
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
          PID:4812
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 204
            4⤵
            • Program crash
            PID:2020
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3560
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3560 CREDAT:17410 /prefetch:2
            4⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4864
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1940
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1940 CREDAT:17410 /prefetch:2
            4⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1548
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4812 -ip 4812
      1⤵
        PID:4328

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Microsoft\WaterMark.exe

        Filesize

        95KB

        MD5

        c81fd03698ac39336710545a59e31fdc

        SHA1

        836b52d47757d6875564aa481ba87dee50134bd3

        SHA256

        1e7e7c06c63d3cf8626579a3bec0aa11bb15b43a65313d5ec8bf86afaad69fe0

        SHA512

        9e64e5e199a8e385e386dbfca7ee0780f786e00b9601c7d785b057fc2c42ab9d8fba0ac7857176f262d1ea2ea1fec07e445967d2ce219e2c822a64d9d85df604

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

        Filesize

        471B

        MD5

        5c880ecece7595aea41224edbf5f8bba

        SHA1

        883636d01cf260db4e245913bf0bf90ead6bbacf

        SHA256

        31736fecaf227fc906a4146252d5b452d9118e68c3a12c72095969f42724c621

        SHA512

        d5f565aa1cafa0fa8217c59355e7289138b862a99df2bbea6059b4f4ec1af0bd337e53d8349b9595606dfddbfe82d743ee748cff9b7c65b741d09e3cf9abb1cc

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

        Filesize

        404B

        MD5

        dec4fad4708b1e41aedb96060079837b

        SHA1

        7c164163926f34c637804124d2d0e3695dfaf79d

        SHA256

        34d809f7087c3445ae269900f62c34ac47da9170cf1f750aef465e9cb2de5b5b

        SHA512

        d5d4eb334f23aadf42372935224592d4afda2e65964ca2583d8d34a969f0516c28b5eabc34c4a0daf406403471412f789c9a345e7af9e2c42ca3f3577e7fae0d

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

        Filesize

        404B

        MD5

        326113e4492a3af0427a74aa471f7d50

        SHA1

        93bbd04a9b0b2f99cd9a90befc27ee8f2fe119e4

        SHA256

        f3bc7602951fd6b86331b0ea475924459dc837ad24f83376872a99de0a7d8335

        SHA512

        ba9df0fcf229bab82603749ab04bfc23f1a007019f05560289f9d59e56b0b82cdd6922d9d0bce2107a00f0f1937b60cc65c2a3c87dc37c17782c73c9b0c53da9

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{7A07B1C7-D664-11EF-BEF1-DA67B56E6C1B}.dat

        Filesize

        5KB

        MD5

        cfe9f20926472e344d4ecff9578237c3

        SHA1

        9847d5de8c7f6680df46004cee6465a9367ab638

        SHA256

        c13f24beb1086b537532643f8033fb056d73662d9538c8e73672574d4a687726

        SHA512

        6174341d232faa35c78450ccafdc678d2953402f8ba6d7a318906028497c42c569a1b297a97fd485fc6c960a237eed0935b8ee7f5d1ae36bfb53ebc884084b1d

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{7A0A160E-D664-11EF-BEF1-DA67B56E6C1B}.dat

        Filesize

        3KB

        MD5

        00c90072d839de93aba822b3692c2519

        SHA1

        853f526f5f9c545dff8a044f558d0455231ed257

        SHA256

        82622c7f7665835c12121fa8aa53c2e85cb03bc16bb4e99ad76158138391a07c

        SHA512

        a102ff5b5ea1cad4e5d6a0f56365f25522553e165247ec50dbac54bc938e37c668a91c14d2caa6509ddbf8dd6202d2dd48c7b6ea08e48764deb75fd454bbdf1e

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • memory/1396-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1396-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1396-5-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1396-3-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1396-0-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB

      • memory/1396-17-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1396-1-0x0000000000401000-0x0000000000402000-memory.dmp

        Filesize

        4KB

      • memory/1396-47-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB

      • memory/1396-2-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB

      • memory/1396-7-0x00000000008C0000-0x00000000008C1000-memory.dmp

        Filesize

        4KB

      • memory/1396-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1396-4-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1396-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2684-33-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2684-31-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/2684-32-0x00000000774D2000-0x00000000774D3000-memory.dmp

        Filesize

        4KB

      • memory/2684-36-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2684-28-0x00000000774D2000-0x00000000774D3000-memory.dmp

        Filesize

        4KB

      • memory/2684-26-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/2684-24-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4812-29-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

        Filesize

        4KB

      • memory/4812-30-0x0000000000E80000-0x0000000000E81000-memory.dmp

        Filesize

        4KB