Analysis

  • max time kernel
    149s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    23-07-2024 21:02

General

  • Target

    68eabc2640ebb39cbe2ef20f8d75069a_JaffaCakes118.exe

  • Size

    556KB

  • MD5

    68eabc2640ebb39cbe2ef20f8d75069a

  • SHA1

    68d3721d0c5f3726d2f1554b47019e8ce4356ffc

  • SHA256

    97663c0880e343b081e03f2280b4fbffa47121554f5a719d8cbcf221de7c935c

  • SHA512

    22e5049e5e0743e6deff7540d78094227836016a015b15fe816e343af3812c1b9b012db1ece9acca900a6832a8fbc3a7bc357a28ff91f14d83a3fdbf2e0a0d50

  • 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 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.

  • 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:332
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies WinLogon for persistence
    PID:1420
    • C:\Users\Admin\AppData\Local\Temp\68eabc2640ebb39cbe2ef20f8d75069a_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\68eabc2640ebb39cbe2ef20f8d75069a_JaffaCakes118.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2456
      • 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:2104
        • C:\Users\Admin\vuujij.exe
          "C:\Users\Admin\vuujij.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:2740
        • 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:2828
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:696
      • 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:1532
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          PID:2940
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • Maps connected drives based on registry
          • Suspicious behavior: EnumeratesProcesses
          PID:1208
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2932
        • 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:2548
        • 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:2044
      • 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:3020
        • C:\Users\Admin\AppData\Local\22243bce\X
          *0*bc*980f796a*31.193.3.240:53
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:2980
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2448
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c tasklist&&del 68eabc2640ebb39cbe2ef20f8d75069a_JaffaCakes118.exe
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        PID:1268
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          4⤵
          • Enumerates processes with tasklist
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1556
  • C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
    1⤵
      PID:2076

    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:\Windows\system32\consrv.dll

      Filesize

      29KB

      MD5

      1149c1bd71248a9d170e4568fb08df30

      SHA1

      6f77f183d65709901f476c5d6eebaed060a495f9

      SHA256

      c2dcf387cb4d218f50463338291e7db38afbdab9aab88fc54e7f9283df1792d1

      SHA512

      9e6eac8facb23b38552d37c9f3cb24098f871d2885ecb3630fcd0199c5600b12a42f095f9fbeb90e5632496491d46fd987660cdda695e92dc386bd482d3ff459

    • \Users\Admin\3xek.exe

      Filesize

      251KB

      MD5

      2ce19a9f18fc524fe115603b4ad9b9aa

      SHA1

      30b4c119d4b915826b020b12b7a6d5c7c5fd3c0e

      SHA256

      6fbf9cc7aea0d80f7706603a0b8b11938a9a0e34557adb18b711d08cec13d7a3

      SHA512

      c060d4c01799b6bd51947534359547c394d7f412d8edf2f3b3c6ac33ac13b66eee9503495cc5997ec9a4df162518422a5f4e13d75fe274baee1580d8e6a752b6

    • \Users\Admin\AppData\Local\22243bce\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\vuujij.exe

      Filesize

      224KB

      MD5

      14a1b89842121b4d5edb715165bb6686

      SHA1

      3541b47a8c354d2710189e4e35077878cf7b6c51

      SHA256

      16032e3a304bd7f67ed487f28c1fb208e192c36d8224a0c16eb9540d0493ceb9

      SHA512

      1b575f8abdd01399111391952dff6140270fa859ef22e09dd90174c5c009832be6e90a59d9893cf3230d0a262a4dc2dc2e77073e04125c8346e6f8fe8932b3d8

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

      Filesize

      2KB

      MD5

      6d03845f1d43e10908336ba602894baa

      SHA1

      e804767710e4c25c01705ca8290cbfc8ebe0ca0c

      SHA256

      523ee58ceeed3abcbc59b51f745ebfdf3bff774dd9792e3be0f3aeb63e8ab324

      SHA512

      632a2b6aed9dd21e35db28f131cf1c384eb4c553f3bbe05874ddbe6fa5fa9cbe2548033d420b057cad6d9e93b171c6baa4382194c151164ceb0fb924be29aa2b

    • memory/332-117-0x0000000000C10000-0x0000000000C1B000-memory.dmp

      Filesize

      44KB

    • memory/1208-140-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1208-45-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1208-43-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1208-41-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1208-48-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1208-52-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1208-50-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1208-51-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1420-108-0x00000000024D0000-0x00000000024D6000-memory.dmp

      Filesize

      24KB

    • memory/1420-130-0x00000000024F0000-0x00000000024FB000-memory.dmp

      Filesize

      44KB

    • memory/1420-135-0x0000000002500000-0x000000000250B000-memory.dmp

      Filesize

      44KB

    • memory/1420-104-0x00000000024D0000-0x00000000024D6000-memory.dmp

      Filesize

      24KB

    • memory/1420-112-0x00000000024D0000-0x00000000024D6000-memory.dmp

      Filesize

      24KB

    • memory/1420-134-0x00000000024F0000-0x00000000024FB000-memory.dmp

      Filesize

      44KB

    • memory/1420-126-0x00000000024F0000-0x00000000024FB000-memory.dmp

      Filesize

      44KB

    • memory/2044-94-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2044-76-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2044-85-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2044-87-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2044-83-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2044-80-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2044-78-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2104-28-0x0000000003A00000-0x00000000044BA000-memory.dmp

      Filesize

      10.7MB

    • memory/2548-149-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2548-68-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2548-72-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2548-74-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2548-64-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2548-75-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2548-66-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2932-53-0x0000000000400000-0x0000000000455000-memory.dmp

      Filesize

      340KB

    • memory/2932-63-0x0000000000400000-0x0000000000455000-memory.dmp

      Filesize

      340KB

    • memory/2932-62-0x0000000000400000-0x0000000000455000-memory.dmp

      Filesize

      340KB

    • memory/2932-70-0x0000000000400000-0x0000000000455000-memory.dmp

      Filesize

      340KB

    • memory/2932-55-0x0000000000400000-0x0000000000455000-memory.dmp

      Filesize

      340KB

    • memory/2932-145-0x0000000000400000-0x0000000000455000-memory.dmp

      Filesize

      340KB

    • memory/2932-57-0x0000000000400000-0x0000000000455000-memory.dmp

      Filesize

      340KB

    • memory/2932-60-0x0000000000400000-0x0000000000455000-memory.dmp

      Filesize

      340KB

    • memory/2940-39-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB