Overview

overview

10

Static

static

10

Client-built.exe

windows11-21h2-x64

10

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General

  • Target

    Client-built.exe

  • Size

    875KB

  • Sample

    250330-xm5chsxkt3

  • MD5

    8c2785d34b3a6e6fbce972117228a9b4

  • SHA1

    673b9eb1f253903c45834dcba09afcef718599e4

  • SHA256

    6a960757025813729fa37ab51a6a7db9c8439d429e078f79717008fc2796b141

  • SHA512

    c2f184d9a265425b190bc3a900083112a46436bc09907ded7baeaa83c9202f66e73bf036dc2738eac35ca41d049d80f77daf3519e9fe23ed2754264314f2497a

  • SSDEEP

    24576:EGcC7Tt+PSWHIPbcNK0KKfaOwI55l2Sszls1j5:XcC7TmEgKKHwCBsza

Score
10/10
quasaroffice04ransomwarespywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

1.5.0

Botnet

Office04

C2

Javv-46764.portmap.host:46764

Mutex

c236c7b5-e333-43a3-a991-954c61518c46

Attributes
  • encryption_key

    F5F31C46BB15BEDDB643667BC441A55E746DE4B8

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Modded Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      875KB

    • MD5

      8c2785d34b3a6e6fbce972117228a9b4

    • SHA1

      673b9eb1f253903c45834dcba09afcef718599e4

    • SHA256

      6a960757025813729fa37ab51a6a7db9c8439d429e078f79717008fc2796b141

    • SHA512

      c2f184d9a265425b190bc3a900083112a46436bc09907ded7baeaa83c9202f66e73bf036dc2738eac35ca41d049d80f77daf3519e9fe23ed2754264314f2497a

    • SSDEEP

      24576:EGcC7Tt+PSWHIPbcNK0KKfaOwI55l2Sszls1j5:XcC7TmEgKKHwCBsza

    Score
    10/10
    quasaroffice04ransomwarespywarestealertrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Enterprise v15

Tasks