Overview

overview

10

Static

static

efbca39b8b...5a.exe

windows7-x64

10

efbca39b8b...5a.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    efbca39b8b35dd46e0d5a81a275a6bc67c705240c27c8f293af91baafc8a9c5a
  • Size 522KB
  • Sample221013-t6882adfc8
  • SHA256 efbca39b8b35dd46e0d5a81a275a6bc67c705240c27c8f293af91baafc8a9c5a
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
isrstealercollectionspywarestealertrojanupx

Malware Config

Targets

    • Target
      efbca39b8b35dd46e0d5a81a275a6bc67c705240c27c8f293af91baafc8a9c5a
    • Size 522KB
    • SHA256 efbca39b8b35dd46e0d5a81a275a6bc67c705240c27c8f293af91baafc8a9c5a
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    isrstealercollectionspywarestealertrojanupx

    • ISR Stealer

      ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

      trojanstealerisrstealer

    • ISR Stealer payload

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses Microsoft Outlook accounts

      collection

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks