Overview

overview

10

Static

static

10

ssa.exe

windows10-2004-x64

10

ssa.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    ssa.exe
  • Size 3.1MB
  • Sample260907-v816wadn6x
  • SHA256 2a722d4828c2c0f5826ce72e1ba22578831ac55b4c1e2e319a3ac651a1baffbd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasarkotami.co/vi-vn/discoveryexecutionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • kotami.co/vi-vn/

C2

  • kotami.co/vi-vn/:4782

  • kotami.co/vi-vn/:80

  • kotami.co/vi-vn/:8080

  • kotami.co/vi-vn/:443

  • kotami.co/vi-vn/:8443

  • kotami.co/vi-vn/:23

Mutex

  • c5d2d708-e66f-4351-b915-e068af7ab273

Attributes
  • encryption_key

    7DB184117F5356211726F6C83149373E39585AB4

  • install_name

    svchost.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    https://kotami.co/vi-vn/

  • subdirectory

    SubDir

Targets

    • Target
      ssa.exe
    • Size 3.1MB
    • SHA256 2a722d4828c2c0f5826ce72e1ba22578831ac55b4c1e2e319a3ac651a1baffbd
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    kotami.co/vi-vn/discoveryexecutionquasarpersistencespywaretrojan

    • Family: 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.

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks