Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2024 05:44

General

  • Target

    eab1b1c6efa586970d3683500c7f560f_JaffaCakes118.exe

  • Size

    556KB

  • MD5

    eab1b1c6efa586970d3683500c7f560f

  • SHA1

    1f69540322c998a0914d8487b4d8615ab4a56116

  • SHA256

    46bb881559c4c3af361f2ea49d61e837697cc4166d015ef371f1303b509e1aae

  • SHA512

    4b9217ed7c0af97ba09107a7c83ca4cc5f03408b8a260c9bd6ca198c4def20df944845d5a3a1103c24c6a162e178da347ae67ec452f576a5b9fbb4d77834aaba

  • SSDEEP

    12288:L7Lo8Rs90X41cnOOWB2KpyYK4BVqZDx2mpmHPW9GROsI8w:L7L1yMgcnOds44Fp2PWUDI8

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 10 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 27 IoCs

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

  • Unexpected DNS network traffic destination 5 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 53 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\csrss.exe
    %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
    1⤵
    • Executes dropped EXE
    • Suspicious use of UnmapMainImage
    PID:336
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies WinLogon for persistence
    PID:1188
    • C:\Users\Admin\AppData\Local\Temp\eab1b1c6efa586970d3683500c7f560f_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\eab1b1c6efa586970d3683500c7f560f_JaffaCakes118.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Users\Admin\NB4wr66jY4.exe
        C:\Users\Admin\NB4wr66jY4.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2016
        • C:\Users\Admin\baael.exe
          "C:\Users\Admin\baael.exe"
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:2696
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del NB4wr66jY4.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2864
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2852
      • C:\Users\Admin\2xek.exe
        C:\Users\Admin\2xek.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2904
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          PID:2648
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • Maps connected drives based on registry
          • Suspicious behavior: EnumeratesProcesses
          PID:2884
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2728
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1964
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:660
      • C:\Users\Admin\3xek.exe
        C:\Users\Admin\3xek.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1848
        • C:\Users\Admin\AppData\Local\76a54caa\X
          *0*bc*1bc9c7c0*31.193.3.240:53
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1424
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:960
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c tasklist&&del eab1b1c6efa586970d3683500c7f560f_JaffaCakes118.exe
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        PID:2928
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          4⤵
          • Enumerates processes with tasklist
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1320
  • C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
    1⤵
      PID:1684
    • C:\Windows\system32\wbem\WMIADAP.EXE
      wmiadap.exe /F /T /R
      1⤵
        PID:856

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\2xek.exe

        Filesize

        164KB

        MD5

        c94ab34868ec4624e1e7e95e234a48ed

        SHA1

        b419f37f2fabdac6598cf59fbc505de59a51de77

        SHA256

        9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

        SHA512

        e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

      • C:\Users\Admin\3xek.exe

        Filesize

        251KB

        MD5

        2ce19a9f18fc524fe115603b4ad9b9aa

        SHA1

        30b4c119d4b915826b020b12b7a6d5c7c5fd3c0e

        SHA256

        6fbf9cc7aea0d80f7706603a0b8b11938a9a0e34557adb18b711d08cec13d7a3

        SHA512

        c060d4c01799b6bd51947534359547c394d7f412d8edf2f3b3c6ac33ac13b66eee9503495cc5997ec9a4df162518422a5f4e13d75fe274baee1580d8e6a752b6

      • C:\Windows\system32\consrv.dll

        Filesize

        29KB

        MD5

        1149c1bd71248a9d170e4568fb08df30

        SHA1

        6f77f183d65709901f476c5d6eebaed060a495f9

        SHA256

        c2dcf387cb4d218f50463338291e7db38afbdab9aab88fc54e7f9283df1792d1

        SHA512

        9e6eac8facb23b38552d37c9f3cb24098f871d2885ecb3630fcd0199c5600b12a42f095f9fbeb90e5632496491d46fd987660cdda695e92dc386bd482d3ff459

      • \Users\Admin\AppData\Local\76a54caa\X

        Filesize

        38KB

        MD5

        72de2dadaf875e2fd7614e100419033c

        SHA1

        5f17c5330e91a42daa9ff24c4aa602bd1a72bf6e

        SHA256

        c44993768a4dc5a58ddbfc9cb05ce2a7d3a0a56be45643d70a72bcf811b6c381

        SHA512

        e2520a53326a7d3b056e65d0cf60e9d823ffb34ca026cdddc7ea3a714f8396c53c37e13a887fc86a7dd7076c97fdfad53c3f5a68342ebc1bdec948c76bda8df3

      • \Users\Admin\NB4wr66jY4.exe

        Filesize

        224KB

        MD5

        5f3f430c5d00e2a2e4e1aae0e09078b9

        SHA1

        48a6be11c16e694c42fa0a0d05783177ba1c4adb

        SHA256

        b1799329b5f9bffacf98c4d5542dc7e1b4021e6b3b0970bc1aec0f6094e0d867

        SHA512

        3a41d2084d82a4aaeb6136c629f4dd84a813759570b3ffea2856e3358c2fb11fa19c4c6c5924f78cb0d1e297c7f928ecf4c019cafee15e1aa3fefa3eb05b0873

      • \Users\Admin\baael.exe

        Filesize

        224KB

        MD5

        21afa5f31a6fb01129772febbfe8f91b

        SHA1

        5e3b7b430a625be1ce7c379e31bce9d8400a7f95

        SHA256

        f2c02d4ba8aedd17c5094a8884ef1c1b2e597fc1edd54af029c6e90d27d55d5c

        SHA512

        5e60bb128cdaaddf56d899c394c2df225e93234029fc9be2e73a8876483924dc6670af109bda4af219f3ffd471587b2223b6592197df65d6c9468cd81e11273a

      • \systemroot\assembly\tmp\{1B372133-BFFA-4dba-9CCF-5474BED6A9F6}

        Filesize

        2KB

        MD5

        6d03845f1d43e10908336ba602894baa

        SHA1

        e804767710e4c25c01705ca8290cbfc8ebe0ca0c

        SHA256

        523ee58ceeed3abcbc59b51f745ebfdf3bff774dd9792e3be0f3aeb63e8ab324

        SHA512

        632a2b6aed9dd21e35db28f131cf1c384eb4c553f3bbe05874ddbe6fa5fa9cbe2548033d420b057cad6d9e93b171c6baa4382194c151164ceb0fb924be29aa2b

      • memory/336-118-0x00000000023B0000-0x00000000023BB000-memory.dmp

        Filesize

        44KB

      • memory/660-94-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/660-75-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/660-77-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/660-79-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/660-82-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/660-85-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/660-86-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/660-88-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/1188-104-0x0000000002D30000-0x0000000002D36000-memory.dmp

        Filesize

        24KB

      • memory/1188-126-0x0000000002D50000-0x0000000002D5B000-memory.dmp

        Filesize

        44KB

      • memory/1188-134-0x0000000002D50000-0x0000000002D5B000-memory.dmp

        Filesize

        44KB

      • memory/1188-130-0x0000000002D50000-0x0000000002D5B000-memory.dmp

        Filesize

        44KB

      • memory/1188-108-0x0000000002D30000-0x0000000002D36000-memory.dmp

        Filesize

        24KB

      • memory/1188-112-0x0000000002D30000-0x0000000002D36000-memory.dmp

        Filesize

        24KB

      • memory/1188-135-0x0000000002D60000-0x0000000002D6B000-memory.dmp

        Filesize

        44KB

      • memory/1964-62-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/1964-64-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/1964-71-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/1964-84-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/1964-66-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/1964-138-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/1964-73-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/2648-38-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2728-51-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

      • memory/2728-61-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

      • memory/2728-69-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

      • memory/2728-137-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

      • memory/2728-53-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

      • memory/2728-55-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

      • memory/2728-58-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

      • memory/2728-60-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

      • memory/2884-44-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/2884-40-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/2884-42-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/2884-68-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/2884-136-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/2884-50-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/2884-49-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/2884-47-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB