Overview

overview

8

Static

static

1

delSys32.ps1

windows7-x64

8

delSys32.ps1

windows10-2004-x64

8

Sharing

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General

  • Target
    delSys32.ps1
  • Size 443B
  • Sample240809-mswbpatdjb
  • SHA256 95bbb5e1a37a2e957c5776925ccae8f00fc7651dbbc355a721744696a73bb460
  • MD5 SHA1 SHA512
Score
8/10
defense_evasiondiscoveryexecutionexploitpersistence

Malware Config

Targets

    • Target
      delSys32.ps1
    • Size 443B
    • SHA256 95bbb5e1a37a2e957c5776925ccae8f00fc7651dbbc355a721744696a73bb460
    • MD5 SHA1 SHA512
    Score
    8/10
    defense_evasiondiscoveryexecutionexploitpersistence

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.

    • Possible privilege escalation attempt

      exploit

    • Boot or Logon Autostart Execution: Print Processors

      Adversaries may abuse print processors to run malicious DLLs during system boot for persistence and/or privilege escalation.

      persistence

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

      defense_evasion

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Drops file in System32 directory

    • Modifies termsrv.dll

      Commonly used to allow simultaneous RDP sessions.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks