Overview

overview

10

Static

static

10

Client-built6test.exe

windows7-x64

10

Client-built6test.exe

windows10-2004-x64

10

Resubmissions

06/09/2024, 22:48

240906-2red4ssapa 10

06/09/2024, 22:47

240906-2qq2hs1hkl 10

Sharing

Copy URL Twitter E-mail

General

  • Target

    Client-built6test.exe

  • Size

    3.1MB

  • Sample

    240906-2red4ssapa

  • MD5

    3d0ac3ec8318d51449ca20014e27e6db

  • SHA1

    a4bf696ff20feea96aa595fa46264fdab0186deb

  • SHA256

    b1c92822d16d35d23b49c7920a327ac84109a9906ea85b566b17c99851a8800d

  • SHA512

    808d61ee7f31832e7656f49158a0796612872828ca9192502f8d810fb4dce28761f4a3fc5ac164b2d20e94353d31fc74c9569544746408bf1382ba650070f467

  • SSDEEP

    49152:OhF8mSA28qaZwpMPfl6/NK7xVcXbXxUEuMzTXV1tLfioGd24yVCKaGv2LkmNK:Oh2mF28qaZwpMPfl6lK7xOjqG4y

Score
10/10
quasaroffice04discoverypersistenceprivilege_escalationspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

incrediblew32-41135.portmap.host:41135

Mutex

e35e216e-411f-4600-b7d4-1b7e001ce1e6

Attributes
  • encryption_key

    512BCCA0CE12E096E92A15ECCE78FFB787D7E9B2

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win73

  • subdirectory

    SubDir

Targets

    • Target

      Client-built6test.exe

    • Size

      3.1MB

    • MD5

      3d0ac3ec8318d51449ca20014e27e6db

    • SHA1

      a4bf696ff20feea96aa595fa46264fdab0186deb

    • SHA256

      b1c92822d16d35d23b49c7920a327ac84109a9906ea85b566b17c99851a8800d

    • SHA512

      808d61ee7f31832e7656f49158a0796612872828ca9192502f8d810fb4dce28761f4a3fc5ac164b2d20e94353d31fc74c9569544746408bf1382ba650070f467

    • SSDEEP

      49152:OhF8mSA28qaZwpMPfl6/NK7xVcXbXxUEuMzTXV1tLfioGd24yVCKaGv2LkmNK:Oh2mF28qaZwpMPfl6lK7xOjqG4y

    Score
    10/10
    quasaroffice04discoveryspywaretrojanpersistenceprivilege_escalation

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation

    • Modifies system executable filetype association

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Event Triggered Execution

2
T1546

Change Default File Association

1
T1546.001

Component Object Model Hijacking

1
T1546.015

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Event Triggered Execution

2
T1546

Change Default File Association

1
T1546.001

Component Object Model Hijacking

1
T1546.015

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Query Registry

4
T1012

Remote System Discovery

1
T1018

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks