Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Hello.zip

  • Size

    1.2MB

  • Sample

    240602-3mttnsce25

  • MD5

    71a5a0777c905188d8d419b0e4914fd5

  • SHA1

    a2f0d35a8a4eedeb574db6dc5bb6cff8d4f0eef9

  • SHA256

    f8b020a7d73dd702f0be5c3b77c4de8ee142bd5a3aac3f4ebc64f16fa9715985

  • SHA512

    66da0f340079383705c195dee3e23e55fa101287817e0ae06aa6a3187edb4136ce7a357615c026f30c13de899906bf440cf7c4902dfa421b0bcbee2f08ee4698

  • SSDEEP

    24576:8puqb2UP1BfGLkWW1BpE82gk2T5qYc5ey3J8kerpMDvCx9e:3UP1BfGQWCBeAT5qYue0JYpMDvCx9e

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.1:4782

88.98.207.207:4782

192.168.1.211:4782
Mutex

6d19d2f9-1235-4b10-a1dd-486dc3edd052

Attributes
  • encryption_key

    12AE26995FE0F312DC3ADA3C8CD142053AD088CA

  • 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

      87c807da5b4a2a646390105dac94bc61

    • SHA1

      597d80ed4349e431c5c059ee655c93a0c68e6528

    • SHA256

      459c4c1fbef1557b5f4ead03465530713785c9cb48e2b365f5affe8e93dbec5f

    • SHA512

      825df40a735987d48d328193260f885294c683c12cbb18ae5d07b889c3b7482a90cd02f05aac2d3c362fa817b6502cbec2ae6f0a6378477a9663ef477408ee9f

    • SSDEEP

      49152:uvtG42pda6D+/PjlLOlg6yQipVAQRJ6abR3LoGdfTHHB72eh2NT:uvE42pda6D+/PjlLOlZyQipVAQRJ60

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    behavioral1behavioral2

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

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks