Overview

overview

10

Static

static

3

98feb7e5d2...51.exe

windows10-2004-x64

10

98feb7e5d2...51.exe

windows11-21h2-x64

7

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows11-21h2-x64

3

Sharing

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General

  • Target
    98feb7e5d2cdff3351f0bf47d2dfb7f0a3f7d0f637626a153ca6216c3a541e51.exe
  • Size 629KB
  • Sample250509-qf89kawkt9
  • SHA256 98feb7e5d2cdff3351f0bf47d2dfb7f0a3f7d0f637626a153ca6216c3a541e51
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
guloaderdiscoverydownloaderpersistenceupx

Malware Config

Targets

    • Target
      98feb7e5d2cdff3351f0bf47d2dfb7f0a3f7d0f637626a153ca6216c3a541e51.exe
    • Size 629KB
    • SHA256 98feb7e5d2cdff3351f0bf47d2dfb7f0a3f7d0f637626a153ca6216c3a541e51
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    guloaderdiscoverydownloaderpersistenceupx

    • Guloader family

      guloader

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • UPX packed file

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

      upx
    behavioral1behavioral2
    • Target
      $PLUGINSDIR/System.dll
    • Size 12KB
    • SHA256 8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    discovery
    behavioral3behavioral4

MITRE ATT&CK Enterprise v16

Tasks