Overview

overview

10

Static

static

3

procesosCU...00.exe

windows7-x64

10

procesosCU...00.exe

windows10-2004-x64

10

Resubmissions

07-11-2024 02:17

241107-cq8h5avrbq 10

06-11-2024 22:40

241106-2llk8s1raj 10

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General

  • Target

    0d87ba1290e9b29d1f1d3cbf7bc06992.LHA

  • Size

    778KB

  • Sample

    241107-cq8h5avrbq

  • MD5

    0d87ba1290e9b29d1f1d3cbf7bc06992

  • SHA1

    4a4b025cdd9c7e5414b6d1b6fc3bd68446a3cfe5

  • SHA256

    dd48521142eddeff589404be6780f58bcdc07c0e4e4348f19ec84d73adaffb25

  • SHA512

    f231e7bcc27188dfaf11997a6887e33f794d03101fd0a8aa5043f5fa8151cd3b157dd5cdec94c3a77d5fe93813cbf5a2818e4cc5885313e27e0250e70da20230

  • SSDEEP

    24576:WQdso+guKotxr/P/mwHAvBmbiYczbodD//UJS4:x7uKCN3/lGmbiY4uDHUx

Score
10/10
quasardefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywaretrojan

Malware Config

Targets

    • Target

      procesosCUI7254178000020150023000.exe

    • Size

      908KB

    • MD5

      e93703d8357807ba8be42ce5bd71d99b

    • SHA1

      f557b727748f4aa01265b2bc8e46b6201b5f3b7c

    • SHA256

      fa083a970c90e1e17f4aa83ccd7f0bf52b5e0f35eaf4eeda73abdc115d9b55b9

    • SHA512

      b8ad5c57586b70a769d1f9562148de63a3c5835d6a35d3302f33d4d20619254ae5ae6a1703fb26aaa574d96ba15b053359fe0b17059577256a86ebeb53a9b5af

    • SSDEEP

      24576:Fg/fK9XbMAWE9XEhG7q9efZyHS7en+gIlh:q4Mj4088HS7e+gIlh

    Score
    10/10
    quasardefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywaretrojan

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Modifies security service

      evasion

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • UAC bypass

      evasiontrojan

    • Windows security bypass

      evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Modifies Security services

      Modifies the startup behavior of a security service.

      defense_evasion

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Direct Volume Access

1
T1006

Impair Defenses

5
T1562

Disable or Modify Tools

4
T1562.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

8
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks