Overview

overview

10

Static

static

3

6679538ea4...aa.dll

windows7-x64

10

6679538ea4...aa.dll

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2025, 03:52

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General

  • Target
    6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.dll
  • Size 137KB
  • Sample250306-ee9cdsyjs5
  • SHA256 6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10
discoverypersistence

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Port Monitors 1 TTPs 2 IoCs

    Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

    persistence
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

    discovery
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.dll,#1
      2⤵
      • Boot or Logon Autostart Execution: Port Monitors
      • Sets service image path in registry
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:2328
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2328 -s 624
        3⤵
        • Program crash
        PID:4272
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2328 -ip 2328
    1⤵
      PID:908

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          memory/2328-4-0x0000000043E50000-0x0000000043E77000-memory.dmp
          Download