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

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240611-1jyx4ssgnc

  • MD5

    609144570b9af0223264e261e36384cf

  • SHA1

    2c2525c75e2af3cdeebec03d82257c3c29617595

  • SHA256

    4942f8a2d315d2e65197abd6cf9330d2d025dcfd8c51ce7fda149c8f7605ab9a

  • SHA512

    45684c59597c1fec9a16a0fe936c6500ae61403318a34321eaf91db70b1ca4c9ad04d4a0fbe08d01258f2b996b1ebcd99c407239986f28f77bd613a554021ded

  • SSDEEP

    49152:bvTlL26AaNeWgPhlmVqvMQ7XSKa4m+mz6LoGdMCzsTHHB72eh2NT:bvJL26AaNeWgPhlmVqkQ7XSKa4mw8Cz

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

com-cathedral.gl.at.ply.gg:60312:60312

Mutex

7275eed2-cfc2-4aaa-85a9-989867afc89d

Attributes
  • encryption_key

    1F7D88978B03E5C08F9DEDBD0A0F2EF673BE9527

  • 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

      609144570b9af0223264e261e36384cf

    • SHA1

      2c2525c75e2af3cdeebec03d82257c3c29617595

    • SHA256

      4942f8a2d315d2e65197abd6cf9330d2d025dcfd8c51ce7fda149c8f7605ab9a

    • SHA512

      45684c59597c1fec9a16a0fe936c6500ae61403318a34321eaf91db70b1ca4c9ad04d4a0fbe08d01258f2b996b1ebcd99c407239986f28f77bd613a554021ded

    • SSDEEP

      49152:bvTlL26AaNeWgPhlmVqvMQ7XSKa4m+mz6LoGdMCzsTHHB72eh2NT:bvJL26AaNeWgPhlmVqkQ7XSKa4mw8Cz

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks