Analysis

  • max time kernel
    130s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 19:23

General

  • Target

    6c038e685bc79b14f7a8d021172fccb2_JaffaCakes118.dll

  • Size

    96KB

  • MD5

    6c038e685bc79b14f7a8d021172fccb2

  • SHA1

    879eb98a697cfc932bf8b69356e3564d477c4567

  • SHA256

    1a1f96760887c076a2a656cd841b46bb2c24cf6f49545af26772cd6c7a652aea

  • SHA512

    22c10a461f581b0c4269aebdecb87fba8e1896a35771c0195f206b11c19a32f0316926cbfb9096c025fc71b13e8eb3f12c972577e64996e78d9c42d621e41152

  • SSDEEP

    1536:DqN5DQW3dIw5z/c1CHDV2bTRrcuqjNnT3dPbxM/4xoT0dt+t:wNIwhkeMbTRAjjFKm4

Malware Config

Extracted

Family

cobaltstrike

C2

http://opncloud.net:443/full-beta.crl

Attributes
  • user_agent

    User-Agent: Microsoft-CryptoAPI /10.0 Accept-Encoding: identity Host: opncloud.net

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\6c038e685bc79b14f7a8d021172fccb2_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Windows\system32\cmd.exe
      cmd.exe /c set ehlmjYTHBB=682 & reg add HKCU\SOFTWARE\ikOGWhMCdq /v gLPckSZwUoi /t REG_DWORD /d 3192 & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3648
      • C:\Windows\system32\reg.exe
        reg add HKCU\SOFTWARE\ikOGWhMCdq /v gLPckSZwUoi /t REG_DWORD /d 3192
        3⤵
        • Modifies registry key
        PID:4444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2184-0-0x0000000001400000-0x0000000001401000-memory.dmp

    Filesize

    4KB

  • memory/2184-1-0x000000006BAC0000-0x000000006BAE0000-memory.dmp

    Filesize

    128KB