Overview

overview

10

Static

static

3

2024-04-17...ck.exe

windows7-x64

10

2024-04-17...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-17_07f1976409e294996551f2a8eddc2cfc_virlock

  • Size

    227KB

  • Sample

    240417-f5cxjsef86

  • MD5

    07f1976409e294996551f2a8eddc2cfc

  • SHA1

    8d2da5bc61aef4c5105cd8447511aa34a4a7d38b

  • SHA256

    7fde99048ccf48082e0830a4b6e66ef10f5ca9aa1d266feccb17472f2328ec29

  • SHA512

    48b3be0297ee8ccc73fdca509046cd7507f9d578e983e8595c3b0a21cd919afea3c9eb7e586b0b84238e3a72c3056f65a95ffd7cd8f3410a1f880ed168c2a097

  • SSDEEP

    6144:8W0EnukeRl0XR+RhxCejXbX8FJ0sUM7eFz7hIDSXo:8AnkRl0XRkmejXbX6J0sUGeFz7aWXo

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-17_07f1976409e294996551f2a8eddc2cfc_virlock

    • Size

      227KB

    • MD5

      07f1976409e294996551f2a8eddc2cfc

    • SHA1

      8d2da5bc61aef4c5105cd8447511aa34a4a7d38b

    • SHA256

      7fde99048ccf48082e0830a4b6e66ef10f5ca9aa1d266feccb17472f2328ec29

    • SHA512

      48b3be0297ee8ccc73fdca509046cd7507f9d578e983e8595c3b0a21cd919afea3c9eb7e586b0b84238e3a72c3056f65a95ffd7cd8f3410a1f880ed168c2a097

    • SSDEEP

      6144:8W0EnukeRl0XR+RhxCejXbX8FJ0sUM7eFz7hIDSXo:8AnkRl0XRkmejXbX6J0sUGeFz7aWXo

    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 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