Overview

overview

8

Static

static

3

OYUN.exe

windows10-2004-x64

8

Sharing

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General

  • Target
    OYUN.exe
  • Size 6KB
  • Sample260812-rxte4sak6w
  • SHA256 e26cf3c0634a841ba24025d46fc5cd093db1b0dfff6ad06724b24b92d9e26054
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
executionpersistence

Malware Config

Targets

    • Target
      OYUN.exe
    • Size 6KB
    • SHA256 e26cf3c0634a841ba24025d46fc5cd093db1b0dfff6ad06724b24b92d9e26054
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    8/10
    executionpersistence

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

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

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • Modifies termsrv.dll

      Commonly used to allow simultaneous RDP sessions.

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks