Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    15-07-2024 00:14

General

  • Target

    4764d2c9b663b534da23b77224252de8_JaffaCakes118.exe

  • Size

    556KB

  • MD5

    4764d2c9b663b534da23b77224252de8

  • SHA1

    fb60b6495c3da07fba6c692e3951f0f22569ad0b

  • SHA256

    5a4c837ca73cf7dd7d9116fffaa632ab9f8e6f0e0d6419787c728f7c9ef1625b

  • SHA512

    9924774b8a6b49091acae0196004b34629fc6eb2580013bf7c2ea60a45150f1728e32f64f442929bf0dd2f2a9c63cbfb42a6aff090335d475199f4355297a61f

  • SSDEEP

    12288:Y7Lo8Rs90X41cnOOWB2KpyYK4BVqZDx2mpmHPW9GROsI8w:Y7L1yMgcnOds44Fp2PWUDI8

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 26 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.

  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 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:332
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies WinLogon for persistence
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\4764d2c9b663b534da23b77224252de8_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\4764d2c9b663b534da23b77224252de8_JaffaCakes118.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2876
      • 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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2752
        • C:\Users\Admin\beayeiv.exe
          "C:\Users\Admin\beayeiv.exe"
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:2916
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del NB4wr66jY4.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2596
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:2656
      • C:\Users\Admin\2xek.exe
        C:\Users\Admin\2xek.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2664
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          PID:2192
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • Maps connected drives based on registry
          • Suspicious behavior: EnumeratesProcesses
          PID:992
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          PID:2680
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2560
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2776
      • C:\Users\Admin\3xek.exe
        C:\Users\Admin\3xek.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1864
        • C:\Users\Admin\AppData\Local\d2f57668\X
          *0*bc*dc1453ff*31.193.3.240:53
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:2200
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe"
          4⤵
            PID:1364
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del 4764d2c9b663b534da23b77224252de8_JaffaCakes118.exe
          3⤵
          • Deletes itself
          PID:2460
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:1548
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
      1⤵
        PID:2116
      • C:\Windows\system32\wbem\WMIADAP.EXE
        wmiadap.exe /F /T /R
        1⤵
          PID:2008

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\system32\consrv.dll

          Filesize

          29KB

          MD5

          1149c1bd71248a9d170e4568fb08df30

          SHA1

          6f77f183d65709901f476c5d6eebaed060a495f9

          SHA256

          c2dcf387cb4d218f50463338291e7db38afbdab9aab88fc54e7f9283df1792d1

          SHA512

          9e6eac8facb23b38552d37c9f3cb24098f871d2885ecb3630fcd0199c5600b12a42f095f9fbeb90e5632496491d46fd987660cdda695e92dc386bd482d3ff459

        • \Users\Admin\2xek.exe

          Filesize

          164KB

          MD5

          c94ab34868ec4624e1e7e95e234a48ed

          SHA1

          b419f37f2fabdac6598cf59fbc505de59a51de77

          SHA256

          9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

          SHA512

          e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

        • \Users\Admin\3xek.exe

          Filesize

          251KB

          MD5

          2ce19a9f18fc524fe115603b4ad9b9aa

          SHA1

          30b4c119d4b915826b020b12b7a6d5c7c5fd3c0e

          SHA256

          6fbf9cc7aea0d80f7706603a0b8b11938a9a0e34557adb18b711d08cec13d7a3

          SHA512

          c060d4c01799b6bd51947534359547c394d7f412d8edf2f3b3c6ac33ac13b66eee9503495cc5997ec9a4df162518422a5f4e13d75fe274baee1580d8e6a752b6

        • \Users\Admin\AppData\Local\d2f57668\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\beayeiv.exe

          Filesize

          224KB

          MD5

          c299b1dad0f929139aef54c5705d0762

          SHA1

          25da575b2f49a65e5e8df0ed8fdcebb21d2d48b3

          SHA256

          88b4fc74ac871f34f5b9581e45b732cd882641bceabff9d7a6f5368b4237e31c

          SHA512

          81ff83f6a291b50c15020a52ab6e8199d0fb1afa783ead4658dbd043c207e15fead048cc1ff9d39b4be667c567275a871290344db2360ed1b9511c2213ad87ee

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

          Filesize

          2KB

          MD5

          6d03845f1d43e10908336ba602894baa

          SHA1

          e804767710e4c25c01705ca8290cbfc8ebe0ca0c

          SHA256

          523ee58ceeed3abcbc59b51f745ebfdf3bff774dd9792e3be0f3aeb63e8ab324

          SHA512

          632a2b6aed9dd21e35db28f131cf1c384eb4c553f3bbe05874ddbe6fa5fa9cbe2548033d420b057cad6d9e93b171c6baa4382194c151164ceb0fb924be29aa2b

        • memory/332-117-0x0000000000CA0000-0x0000000000CAB000-memory.dmp

          Filesize

          44KB

        • memory/992-135-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/992-50-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/992-44-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/992-47-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/992-49-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/992-42-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/992-51-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/992-40-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/1208-107-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

          Filesize

          24KB

        • memory/1208-125-0x0000000002E00000-0x0000000002E0B000-memory.dmp

          Filesize

          44KB

        • memory/1208-129-0x0000000002E00000-0x0000000002E0B000-memory.dmp

          Filesize

          44KB

        • memory/1208-103-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

          Filesize

          24KB

        • memory/1208-133-0x0000000002E00000-0x0000000002E0B000-memory.dmp

          Filesize

          44KB

        • memory/1208-134-0x0000000002E10000-0x0000000002E1B000-memory.dmp

          Filesize

          44KB

        • memory/1208-111-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

          Filesize

          24KB

        • memory/2192-38-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2560-73-0x0000000000400000-0x0000000000407000-memory.dmp

          Filesize

          28KB

        • memory/2560-77-0x0000000000400000-0x0000000000407000-memory.dmp

          Filesize

          28KB

        • memory/2560-69-0x0000000000400000-0x0000000000407000-memory.dmp

          Filesize

          28KB

        • memory/2560-66-0x0000000000400000-0x0000000000407000-memory.dmp

          Filesize

          28KB

        • memory/2560-63-0x0000000000400000-0x0000000000407000-memory.dmp

          Filesize

          28KB

        • memory/2560-61-0x0000000000400000-0x0000000000407000-memory.dmp

          Filesize

          28KB

        • memory/2560-72-0x0000000000400000-0x0000000000407000-memory.dmp

          Filesize

          28KB

        • memory/2680-52-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2680-143-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2680-59-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2680-65-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2680-71-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2680-76-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2680-54-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2680-56-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2776-93-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB

        • memory/2776-88-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB

        • memory/2776-80-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB

        • memory/2776-82-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB

        • memory/2776-85-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB

        • memory/2776-87-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB

        • memory/2776-78-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB