Overview

overview

10

Static

static

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

    348KB

  • Sample

    240601-tzee3sgf3s

  • MD5

    0b7139d2d35eb6fb4638ec14b469df7e

  • SHA1

    5b3644a8be1e3ef885b5809b857142295ed2a4d1

  • SHA256

    947ecae6beac19b2fe2154f68940462655843cd5f36db14c0ab0b57cff623138

  • SHA512

    84ae5d2017f268a1249ab1346de9ebda1ab41621b790ecd24cc75df95e9d8415720395b022d4f367819eda642b19a42f31bf50b87a4d980237471b6dcb1041c9

  • SSDEEP

    6144:0jEHwNHJsa2gKMRQDbRFunXCpsIqlfoF:Cxpsa8W6uXC3qRO

Score
10/10
quasardeadlyspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Deadly

C2

uk2.localto.net:3955

Mutex

QSR_MUTEX_Kpy5UOokQcRvJFzawH

Attributes
  • encryption_key

    42mkSeUsHVtyogVkUtuz

  • install_name

    $dead-Client.exe

  • log_directory

    $dead-Logs

  • reconnect_delay

    3000

  • startup_key

    Powershell

  • subdirectory

    $dead-deadly2

Targets

    • Target

      Client-built.exe

    • Size

      348KB

    • MD5

      0b7139d2d35eb6fb4638ec14b469df7e

    • SHA1

      5b3644a8be1e3ef885b5809b857142295ed2a4d1

    • SHA256

      947ecae6beac19b2fe2154f68940462655843cd5f36db14c0ab0b57cff623138

    • SHA512

      84ae5d2017f268a1249ab1346de9ebda1ab41621b790ecd24cc75df95e9d8415720395b022d4f367819eda642b19a42f31bf50b87a4d980237471b6dcb1041c9

    • SSDEEP

      6144:0jEHwNHJsa2gKMRQDbRFunXCpsIqlfoF:Cxpsa8W6uXC3qRO

    Score
    10/10
    quasardeadlyspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2behavioral3

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks