Overview

overview

10

Static

static

3

2024-04-26...ck.exe

windows7-x64

10

2024-04-26...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-26_309f941a539a59e4b7179fc5c794377a_virlock

  • Size

    230KB

  • Sample

    240426-r5bv2adg86

  • MD5

    309f941a539a59e4b7179fc5c794377a

  • SHA1

    40b8e4f75ec009faec0b06bbdd1c730d96c86574

  • SHA256

    79ed342f64b7285e7b90c812be1b838bd96c1a51aa76a6b73f5645b4b2317818

  • SHA512

    8421ef62f5612475edaebd554e32d6e287b1b2de529af95391aa9b2f82fdfb82922b13b02e436b29ea09cbe8ef4e8d0f019d4cb4f5bebdaf715fa127320b4f8a

  • SSDEEP

    6144:EUElgymWaSKFtskSWNzmB0ZaBJj00MGTNF5vZhUeUl4P:2lgymW/KXskShOU3M8JhX1P

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-26_309f941a539a59e4b7179fc5c794377a_virlock

    • Size

      230KB

    • MD5

      309f941a539a59e4b7179fc5c794377a

    • SHA1

      40b8e4f75ec009faec0b06bbdd1c730d96c86574

    • SHA256

      79ed342f64b7285e7b90c812be1b838bd96c1a51aa76a6b73f5645b4b2317818

    • SHA512

      8421ef62f5612475edaebd554e32d6e287b1b2de529af95391aa9b2f82fdfb82922b13b02e436b29ea09cbe8ef4e8d0f019d4cb4f5bebdaf715fa127320b4f8a

    • SSDEEP

      6144:EUElgymWaSKFtskSWNzmB0ZaBJj00MGTNF5vZhUeUl4P:2lgymW/KXskShOU3M8JhX1P

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (86) 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