Overview

overview

10

Static

static

10

FrozenLoader.exe

windows7-x64

10

FrozenLoader.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    FrozenLoader.exe

  • Size

    348KB

  • Sample

    240627-ehhc3stfqm

  • MD5

    56df78c075bbdd3b936d20271cd5dd82

  • SHA1

    3da3858b7567d1c553d5c0159fcb77bdd066a1eb

  • SHA256

    afe6294896126bff591fd4ff3dee78474d3d5c1eb3ffb1e19feded5790274024

  • SHA512

    e18fd89bfb797ba68fa8f9a74d152693ac2e8b7f2e8fbac564aa8ea6a8562176036eec6cd0ebf599821c6e047a9e28c105e45e7d3d65527c534d24334c1e4c6e

  • SSDEEP

    6144:QG13U1vhtvTA19YhA/bDI3RdG2XC5pH1:LUJtLAvSA4y2XC5pH1

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

3.0.1

Botnet

Office04

C2

127.0.0.1:2912

Mutex

QSR_MUTEX_kZpgHXcbTqoAXhJbxd

Attributes
  • encryption_key

    BRjfOpzb3dVWPO5EbkGe

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      FrozenLoader.exe

    • Size

      348KB

    • MD5

      56df78c075bbdd3b936d20271cd5dd82

    • SHA1

      3da3858b7567d1c553d5c0159fcb77bdd066a1eb

    • SHA256

      afe6294896126bff591fd4ff3dee78474d3d5c1eb3ffb1e19feded5790274024

    • SHA512

      e18fd89bfb797ba68fa8f9a74d152693ac2e8b7f2e8fbac564aa8ea6a8562176036eec6cd0ebf599821c6e047a9e28c105e45e7d3d65527c534d24334c1e4c6e

    • SSDEEP

      6144:QG13U1vhtvTA19YhA/bDI3RdG2XC5pH1:LUJtLAvSA4y2XC5pH1

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Looks up external IP address via web service

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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks