Overview

overview

10

Static

static

7

JaffaCakes...0b.dll

windows10-2004-x64

10

JaffaCakes...0b.dll

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    103s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19/09/2025, 16:45

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General

  • Target
    JaffaCakes118_2d7b897ddfb5911e182ae71981896d0b.dll
  • Size 790KB
  • Sample250919-t9d73awkx5
  • SHA256 4105f4c1ca3309a3263b4506de9356e7385e965f84d93364229b1fb88e72c2d2
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
adwaredefense_evasiondiscoveryconfickerpersistencespywareupxworm

Malware Config

Signatures

  • Conficker

    Conficker is a Windows worm written in C++.

    wormconficker
  • Conficker family
    conficker
  • Detects Conficker worm 4 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    defense_evasion
  • Modifies visibility of hidden/system files in Explorer 2 TTPs 1 IoCs
    defense_evasion
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • UPX packed file 2 IoCs

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

    upx
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

    discovery
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
    adwarespyware
  • Modifies registry class 33 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    PID:3228
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d7b897ddfb5911e182ae71981896d0b.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d7b897ddfb5911e182ae71981896d0b.dll,#1
        3⤵
        • Modifies visibility of file extensions in Explorer
        • Modifies visibility of hidden/system files in Explorer
        • Enumerates connected drives
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4436
        • C:\Windows\SysWOW64\explorer.exe
          explorer C:\Users\Admin\AppData
          4⤵
          • System Location Discovery: System Language Discovery
          PID:6112
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    PID:4068
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3832

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/4436-0-0x0000000010000000-0x000000001001A000-memory.dmp
          Download

          memory/4436-3-0x0000000002660000-0x0000000002681000-memory.dmp
          Download

          memory/4436-6-0x0000000002660000-0x0000000002681000-memory.dmp
          Download

          memory/4436-4-0x0000000002660000-0x0000000002681000-memory.dmp
          Download

          memory/4436-7-0x000000007EEC0000-0x000000007EEC1000-memory.dmp
          Download

          memory/4436-9-0x0000000010000000-0x000000001001A000-memory.dmp
          Download

          memory/4436-10-0x0000000002660000-0x0000000002681000-memory.dmp
          Download