Overview

overview

10

Static

static

3

2024-11-21...ck.exe

windows7-x64

10

2024-11-21...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-11-21_4deb641355a2ced75885248619e7e7c8_virlock

  • Size

    192KB

  • Sample

    241121-dc9dyaxfkc

  • MD5

    4deb641355a2ced75885248619e7e7c8

  • SHA1

    fe46b1856c51e85ddcb128235085c3b2bd0a0f51

  • SHA256

    cbf90b656abb4199a0f4cfa4b8fc538202540d9b672e7ea5ac9975ae51884b0d

  • SHA512

    e7632732617e8664dc3fd05ee12fad0e258507468b1455007a8bf99f3e0494a1e0681bb6e04254c8da2338c8998cde919c0343fdb4caf14fb569fd5f3afd7991

  • SSDEEP

    3072:PCvM7zZ8k5E8CenK4tYLt65rU3eF5qaNkQbbAppxVh:ppcrR65YObqvQSpxv

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-11-21_4deb641355a2ced75885248619e7e7c8_virlock

    • Size

      192KB

    • MD5

      4deb641355a2ced75885248619e7e7c8

    • SHA1

      fe46b1856c51e85ddcb128235085c3b2bd0a0f51

    • SHA256

      cbf90b656abb4199a0f4cfa4b8fc538202540d9b672e7ea5ac9975ae51884b0d

    • SHA512

      e7632732617e8664dc3fd05ee12fad0e258507468b1455007a8bf99f3e0494a1e0681bb6e04254c8da2338c8998cde919c0343fdb4caf14fb569fd5f3afd7991

    • SSDEEP

      3072:PCvM7zZ8k5E8CenK4tYLt65rU3eF5qaNkQbbAppxVh:ppcrR65YObqvQSpxv

    Score
    10/10
    discoveryevasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (63) files with added filename extension

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

      ransomware

    • Blocklisted process makes network request

    • 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 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

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks