Analysis

  • max time kernel
    149s
  • max time network
    78s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    29/03/2025, 19:51

General

  • Target

    JaffaCakes118_9620b1b570b74a13d14613e3d35d68e0.exe

  • Size

    1.4MB

  • MD5

    9620b1b570b74a13d14613e3d35d68e0

  • SHA1

    8e69d837a34ff6eb34e05969fe82300e50433127

  • SHA256

    2029d8b7a71aff162ebb50e2b73d695003c92d080d5f1b355ffbbc2c3495d80d

  • SHA512

    e57426a189c83da0fada381678e611c6ba0803d6ad159ef02d385a40b57dfd11e052eb0b9dde7860c7b7514009d30b48c7d20c42095140b31ee6ee3b1669bcf1

  • SSDEEP

    24576:L7WsPkA8QsBPyoG0HBrC2zJSKDAULsKlbw9FTWwb:LrEQsBT1DAOn29F3b

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • A potential corporate email address has been identified in the URL: [email protected]
  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 9 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in System32 directory 10 IoCs
  • UPX packed file 24 IoCs

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

  • Drops file in Windows directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9620b1b570b74a13d14613e3d35d68e0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9620b1b570b74a13d14613e3d35d68e0.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\SysWOW64\lncom.exe
      "C:\Windows\system32\lncom.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Adds policy Run key to start application
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Windows\SysWOW64\fservice.exe
        C:\Windows\system32\fservice.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2856
        • C:\Windows\services.exe
          C:\Windows\services.exe -XP
          4⤵
          • Modifies WinLogon for persistence
          • Adds policy Run key to start application
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies WinLogon
          • Drops file in System32 directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2440
          • C:\Windows\SysWOW64\NET.exe
            NET STOP srservice
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1388
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 STOP srservice
              6⤵
              • System Location Discovery: System Language Discovery
              PID:1944
          • C:\Windows\SysWOW64\NET.exe
            NET STOP navapsvc
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:296
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 STOP navapsvc
              6⤵
              • System Location Discovery: System Language Discovery
              PID:2428
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Windows\SysWOW64\lncom.exe.bat
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2836
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE.bat
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2660
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE.bat

    Filesize

    133B

    MD5

    127346527a8f51194d7dbc218380f5eb

    SHA1

    f9e10acb2252d09a4fd584b4a43f290964a0f9ae

    SHA256

    cf0513e7b760b2838477996e6ae09781c98f32a2d4791471f6b82b1d77cd5ee4

    SHA512

    51ed0ea6d24882dcd937dfee513bf92184ecea21920012c940c60a03db3b213ccb4218ac30f0360918f48b1fa739223357a3d4f8789cc394f0f4f829533b8651

  • C:\Windows\SysWOW64\lncom.exe.bat

    Filesize

    99B

    MD5

    1f73e450d92934cd37c041eb3f1ff51f

    SHA1

    f3e9dece5d6b7d7a0e4966c16ffe31437539d4a0

    SHA256

    3a57d154715459926a51a9e3925687c0c78ec9c88bc39c303b5b93385d34d67e

    SHA512

    5f982d614e54870ae3ad212f049ca3685602812c1bb066a5f6155e694adb994d6d1608ca7a25bcab605812c6e7e6b22817aaf0dba9e906787add9b0a8e3f32a5

  • C:\Windows\SysWOW64\lncom_.bmp

    Filesize

    1.0MB

    MD5

    53820949f6dcf0100246cffacdf89805

    SHA1

    7bd37f01d64cb856ea0afb07f7ed8b5405bafe90

    SHA256

    902b1e9375ba1a463570cb9077ee891f2f43f0c891b2d81d29b20ed99b9c413c

    SHA512

    ef43bc35b8ee1dd237928417995b1a3edaec2c36b4d598407f7053fff5b18cabfcada3f87f3d79b0fc7df2dd3af7a9a7400d6ee16328537cb9d9eb6570437a4f

  • \Windows\SysWOW64\lncom.exe

    Filesize

    341KB

    MD5

    ed0107243a02d930759384d3b0fac40f

    SHA1

    c98a39d158d5f457ebab2d18bf36f5d06cbd8fe5

    SHA256

    d9890618e648dedc1352a12747aabaed95c3d80119c3ba6e71d924e36ec6c7d6

    SHA512

    1e157b5b0e44e1a0de20fa341bf779263620ab634ffa8c1edff77cfc974582ed2ec32b177a108e2f910ce67cca2facab09ff5009b77273e1fe03c5a774b71470

  • \Windows\SysWOW64\reginv.dll

    Filesize

    36KB

    MD5

    d4a3f90e159ffbcbc4f9740de4b7f171

    SHA1

    0542f5d1e2c23dca8d90766b3a8537dc3880e5c9

    SHA256

    2200dd5f83d2fb8c5d3994206a4fa9ff34b4cbfe56ed39a9a03c954cf45d8f77

    SHA512

    5493beb50b5f7d8ec52f32718d01696916ae173456005d0c1294ce695161ce5004aff58ee3892bf5db0f9b23720146a6d3ae8ffbcbbd81f84d894fdc8cf75a94

  • \Windows\SysWOW64\winkey.dll

    Filesize

    24KB

    MD5

    43e7d9b875c921ba6be38d45540fb9dd

    SHA1

    f22a73fc0d4aa3ea6c0b8f61d974b028f308acc4

    SHA256

    f1b2b0abe844e6ba812c7f8709a463a7f6c56fa6ac38d376a0739cc3469f795b

    SHA512

    2e74e23c0875b69b82319391c392132f28f4eb45aa412805130382498ae48969a06a2b3a7528b626fa7d7ddb6b006f19f0ef8d73cf73cb9a0c0df44a21077622

  • memory/2328-24-0x0000000007BB0000-0x0000000007DAF000-memory.dmp

    Filesize

    2.0MB

  • memory/2328-23-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2328-3-0x0000000000750000-0x0000000000752000-memory.dmp

    Filesize

    8KB

  • memory/2328-0-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2440-95-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-89-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-85-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-55-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-94-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-90-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-92-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-91-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-88-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-72-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-71-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-87-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-93-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-86-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-83-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2440-84-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-45-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-64-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2856-47-0x0000000003A00000-0x0000000003BFF000-memory.dmp

    Filesize

    2.0MB

  • memory/2908-81-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2908-70-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2908-69-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2908-44-0x0000000003AB0000-0x0000000003CAF000-memory.dmp

    Filesize

    2.0MB

  • memory/2908-26-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2984-68-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB

  • memory/2984-6-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB

  • memory/2984-4-0x0000000000130000-0x0000000000132000-memory.dmp

    Filesize

    8KB