Overview

overview

10

Static

static

1

E-sign Pay...nt.vbs

windows10-2004-x64

10

E-sign Pay...nt.vbs

windows11-21h2-x64

10

Sharing

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General

  • Target
    E-sign Payment confirmation and Agreement.vbs
  • Size 1.5MB
  • Sample260218-legqpsez8d
  • SHA256 c3a1146bf6e791105fdbd64cc28f99a7ff82f356ff8c5c155755bdc0b549c826
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
donutloaderquasarloaderspywaretrojan

Malware Config

Extracted

Family

  • quasar

Attributes
  • encryption_key

    2B0805F4D2EF415F2B88DDF77A6C83D5F5D0D7AF

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Targets

    • Target
      E-sign Payment confirmation and Agreement.vbs
    • Size 1.5MB
    • SHA256 c3a1146bf6e791105fdbd64cc28f99a7ff82f356ff8c5c155755bdc0b549c826
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    donutloaderquasarloaderspywaretrojan

    • Detects DonutLoader

      loader

    • DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

      loaderdonutloader

    • Donutloader family

      donutloader

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks