Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-1703-x64

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240328-art11she39

  • MD5

    6efb136f01bd7beeec9603924b79f5d0

  • SHA1

    8794dd0e858759eea062ebc227417f712a8d2af0

  • SHA256

    3ad07a1878c8b77f9fc0143d8f88c240d8d0b986d015d4c0cd881ad9c0d572e1

  • SHA512

    102ca624f0fefff74f4e9a6d5a173861b3887f24e608245370adabc11cd385805ed18f5208ab5a33f05131a42edf04d234b146184e954e9d83f40b8149353548

  • SSDEEP

    49152:2vtt62XlaSFNWPjljiFa2RoUYInH8FEFUCk/bvLoGdrjTHHB72eh2NT:2vP62XlaSFNWPjljiFXRoUYIH8dz

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

91.92.254.40:4782

Mutex

56928f7b-c5c9-4b24-af59-8c509ce1d27e

Attributes
  • encryption_key

    60574F1741A0786C827AF49C652AB3A7DA0533D1

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows System

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      6efb136f01bd7beeec9603924b79f5d0

    • SHA1

      8794dd0e858759eea062ebc227417f712a8d2af0

    • SHA256

      3ad07a1878c8b77f9fc0143d8f88c240d8d0b986d015d4c0cd881ad9c0d572e1

    • SHA512

      102ca624f0fefff74f4e9a6d5a173861b3887f24e608245370adabc11cd385805ed18f5208ab5a33f05131a42edf04d234b146184e954e9d83f40b8149353548

    • SSDEEP

      49152:2vtt62XlaSFNWPjljiFa2RoUYInH8FEFUCk/bvLoGdrjTHHB72eh2NT:2vP62XlaSFNWPjljiFXRoUYIH8dz

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Tasks