Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    250108-wlqbjaxmf1

  • MD5

    9cd0c80ad619579b83e16f7afebf98b2

  • SHA1

    e19f404fe2b5f2fa57af674c2993009ae13e29f8

  • SHA256

    35cdd06575489ef146d2851a906eb542cddbfb9c94fd31b703dfee4944d8e36f

  • SHA512

    fb2613be8e367893386497b1ee3aa52c608f0c9c539c0e0ac6738cb4333301ca3f6bbb63fbf2ea60d54884a7fce624e1ec9ecc0c70ed0fc114da2254cb05bc48

  • SSDEEP

    49152:/v3lL26AaNeWgPhlmVqvMQ7XSKIrRJ6dbR3LoGdm0THHB72eh2NT:/v1L26AaNeWgPhlmVqkQ7XSKIrRJ6vW

Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

abc248597df-25592.portmap.host:25592:25592

Mutex

837d4201-7565-459a-ad6a-d5ef54fa537b

Attributes
  • encryption_key

    A896862809BEA850DB21D754E127B53DD347664D

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      9cd0c80ad619579b83e16f7afebf98b2

    • SHA1

      e19f404fe2b5f2fa57af674c2993009ae13e29f8

    • SHA256

      35cdd06575489ef146d2851a906eb542cddbfb9c94fd31b703dfee4944d8e36f

    • SHA512

      fb2613be8e367893386497b1ee3aa52c608f0c9c539c0e0ac6738cb4333301ca3f6bbb63fbf2ea60d54884a7fce624e1ec9ecc0c70ed0fc114da2254cb05bc48

    • SSDEEP

      49152:/v3lL26AaNeWgPhlmVqvMQ7XSKIrRJ6dbR3LoGdm0THHB72eh2NT:/v1L26AaNeWgPhlmVqkQ7XSKIrRJ6vW

    Score
    10/10
    quasaroffice04discoveryspywaretrojan

    • 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 v15

Tasks