Overview

overview

10

Static

static

3

2024-03-09...ck.exe

windows7-x64

10

2024-03-09...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-09_51261a1f144e9755e31d17c0f65e9f12_virlock

  • Size

    113KB

  • Sample

    240309-q4ysqsha89

  • MD5

    51261a1f144e9755e31d17c0f65e9f12

  • SHA1

    55f7950f9a2eefb68cc309a292f1941b8b9b6fff

  • SHA256

    8cf553bcc65fd557f86601e4cf8be57a660f4407901ebc7f4e09a8218b7b9144

  • SHA512

    207638282c5088072544f0edce50f6a82b87a6573f48dca6a2c0cf7b2c5aade1b9f5026bff550b2c146ed00af0fdaffca13db7291a93a2691097834b7122738d

  • SSDEEP

    3072:IEXCx4Z42mrNqwlliigQTKaseER8xKCGwU0qE3V:ZXCD2qqwe8kpjbE3V

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-09_51261a1f144e9755e31d17c0f65e9f12_virlock

    • Size

      113KB

    • MD5

      51261a1f144e9755e31d17c0f65e9f12

    • SHA1

      55f7950f9a2eefb68cc309a292f1941b8b9b6fff

    • SHA256

      8cf553bcc65fd557f86601e4cf8be57a660f4407901ebc7f4e09a8218b7b9144

    • SHA512

      207638282c5088072544f0edce50f6a82b87a6573f48dca6a2c0cf7b2c5aade1b9f5026bff550b2c146ed00af0fdaffca13db7291a93a2691097834b7122738d

    • SSDEEP

      3072:IEXCx4Z42mrNqwlliigQTKaseER8xKCGwU0qE3V:ZXCD2qqwe8kpjbE3V

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (82) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

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

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks