Overview

overview

10

Static

static

3

2024-05-23...ck.exe

windows7-x64

10

2024-05-23...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-23_7f9f82f9ccdc3aedf384ba1dc6155b41_virlock

  • Size

    226KB

  • Sample

    240523-ec6hqada58

  • MD5

    7f9f82f9ccdc3aedf384ba1dc6155b41

  • SHA1

    9d3076a8f957af52c34d92d75e0fd98dd5e2e208

  • SHA256

    19af2413441e3bbc9e00419fe192d0e54ef12f7042e2fadee7392e2980865182

  • SHA512

    35544114fb7e5d4f05ca47379901d651b9a2be1fc6724a6e61af162aa9af9843997a4ce0f739da8a6459e272072c2c8721cd519ebb2e68355c2f38457e4a4801

  • SSDEEP

    6144:h/eT9sJI9Ep1jYZjAo8QuYkXNjVNSK4M1Sl+OhsReYgL9/NFnEpms:UTvEp1jYZjAo8QuYkXNjVNSK4M1Sl+/V

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-23_7f9f82f9ccdc3aedf384ba1dc6155b41_virlock

    • Size

      226KB

    • MD5

      7f9f82f9ccdc3aedf384ba1dc6155b41

    • SHA1

      9d3076a8f957af52c34d92d75e0fd98dd5e2e208

    • SHA256

      19af2413441e3bbc9e00419fe192d0e54ef12f7042e2fadee7392e2980865182

    • SHA512

      35544114fb7e5d4f05ca47379901d651b9a2be1fc6724a6e61af162aa9af9843997a4ce0f739da8a6459e272072c2c8721cd519ebb2e68355c2f38457e4a4801

    • SSDEEP

      6144:h/eT9sJI9Ep1jYZjAo8QuYkXNjVNSK4M1Sl+OhsReYgL9/NFnEpms:UTvEp1jYZjAo8QuYkXNjVNSK4M1Sl+/V

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (61) 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.

    • 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 Matrix ATT&CK v13

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

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks