Analysis

  • max time kernel
    93s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-07-2024 09:30

General

  • Target

    49354f81ebd308831aec1d7adabeeb7d_JaffaCakes118.dll

  • Size

    256KB

  • MD5

    49354f81ebd308831aec1d7adabeeb7d

  • SHA1

    ac96b612e2a66c4d8945fb142bbafac535ddf253

  • SHA256

    9a8de012326c714c11a77d6f43b2bfdb824244f2cf6809f848aba9196bdf0b02

  • SHA512

    e778a85202f4bc568f647ddf41dc74fd80d690d7dd95fd7551315bc004e1d56800b74d4ba5cfa8dd9984b9c9024f8893e65eb3b3cef76e24423da37d3844a0d3

  • SSDEEP

    3072:9dcQ2ZNMSQvbajUTUItjT68+x1qfe5OwVPxEsZbbANOhpeTav9DTlO:dATSOjUQK9e5OwVPxhZQ8hpt1DTlO

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\49354f81ebd308831aec1d7adabeeb7d_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4464
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\49354f81ebd308831aec1d7adabeeb7d_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1188
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        PID:3044
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 264
          4⤵
          • Program crash
          PID:2260
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3044 -ip 3044
    1⤵
      PID:4160

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\rundll32mgr.exe

      Filesize

      104KB

      MD5

      84b7783804fa7506672a409e9899c6be

      SHA1

      2da8a6e9c04662564e18cdf98f73e224a5662533

      SHA256

      b26a93c17ac6a412c6c191aa6a1543537f3185fe813c24153c6dec736fbad4ef

      SHA512

      8a867296b05f45dd79ab64b11b6cc0cc8fad835b2f5ba9b8469981cc9b3e15c91f98b688cbe7addfab7ea2bd55a1d475fc853c004afb24be1b5691f8183c897c

    • memory/1188-1-0x0000000010000000-0x0000000010042000-memory.dmp

      Filesize

      264KB

    • memory/3044-5-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB

    • memory/3044-6-0x0000000000580000-0x0000000000581000-memory.dmp

      Filesize

      4KB

    • memory/3044-7-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB