Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    06-02-2025 11:28

General

  • Target

    JaffaCakes118_aaaafdbf07bbf3bf082ae5df93f1b09e.exe

  • Size

    502KB

  • MD5

    aaaafdbf07bbf3bf082ae5df93f1b09e

  • SHA1

    74d3235f645b9416370dc5a9eda3191889098678

  • SHA256

    c48c66b35c2ea95218ca0dbeca97046ef5e96ca10abee0712f71d601b70b83eb

  • SHA512

    59aab295b0c59c900451ff080aa991f8641f23faf88c68398c5d724191555146eb0fb8fd4b3b47ccac85554c8d87b26ab5c25f6da7b6ca449eec417fb5e6d649

  • SSDEEP

    12288:e6/DdQHroPTAwpwXQsBPTeoG0HhDtdC2Cp4JSErXDYMkFeSrdNLCQOIvf:V7WsPkA8QsBPyoG0HBrC2zJSKDpkF5rF

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.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 18 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in System32 directory 9 IoCs
  • UPX packed file 26 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).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aaaafdbf07bbf3bf082ae5df93f1b09e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aaaafdbf07bbf3bf082ae5df93f1b09e.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Windows\SysWOW64\lncom_.exe
      "C:\Windows\system32\lncom_.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2384
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 56
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:880
    • 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:696
      • 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:2784
        • 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:2804
          • C:\Windows\SysWOW64\NET.exe
            NET STOP srservice
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2680
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 STOP srservice
              6⤵
              • System Location Discovery: System Language Discovery
              PID:2320
          • C:\Windows\SysWOW64\NET.exe
            NET STOP navapsvc
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2892
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 STOP navapsvc
              6⤵
              • System Location Discovery: System Language Discovery
              PID:2684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\lncom.exe

    Filesize

    341KB

    MD5

    ca772d8b4aaaec0967a828385c885e56

    SHA1

    c517abc6103813788828650864aff79f369ec427

    SHA256

    9f688d9924364f88f78a3c6f61443fb20f3eb5a6921f8e900c9b9b0ad2d8e463

    SHA512

    94f0e214343c28d0cc2c6584b660d60564a6cf9371f3d84f08c3206c6cc9d4bc9c2fb2b3d20e7306701314a0b7591e020e2e0d4c81a17510dda5ad741a87d85b

  • C:\Windows\SysWOW64\lncom_.exe

    Filesize

    155KB

    MD5

    90022761d07a92dffaf0d853a2196f0d

    SHA1

    9b224c18539804a12cdf7f993502b8c80cb96308

    SHA256

    771c6cff80c197c726da73d6b187186cd3b2ec97d2db9d8894ad2782d6140e6f

    SHA512

    5f218a09cc045fb4a059a733743c9352f56f43c9f604f2f597e128838808415a56c0f1a1b78b9223907aeda232533bbad2dbd053b09f2ba935cd06f76d1b223d

  • \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/696-26-0x00000000002C0000-0x00000000002C1000-memory.dmp

    Filesize

    4KB

  • memory/696-76-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/696-74-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/696-25-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/696-45-0x0000000003A70000-0x0000000003C6F000-memory.dmp

    Filesize

    2.0MB

  • memory/696-47-0x0000000003A70000-0x0000000003C6F000-memory.dmp

    Filesize

    2.0MB

  • memory/1440-0-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/1440-23-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/1440-12-0x00000000076B0000-0x00000000076F6000-memory.dmp

    Filesize

    280KB

  • memory/1440-13-0x00000000076B0000-0x00000000076F6000-memory.dmp

    Filesize

    280KB

  • memory/2384-14-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/2384-59-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/2784-48-0x00000000003D0000-0x00000000003D1000-memory.dmp

    Filesize

    4KB

  • memory/2784-46-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2784-72-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-81-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-85-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-78-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-60-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-82-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-83-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-84-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-79-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-86-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-87-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-88-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-89-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-90-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-91-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-92-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB

  • memory/2804-93-0x0000000000400000-0x00000000005FF000-memory.dmp

    Filesize

    2.0MB