Overview

overview

10

Static

static

3

2024-05-24...ck.exe

windows7-x64

10

2024-05-24...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-24_5b3e104a28b0fe470b49d27e6fd466de_virlock

  • Size

    268KB

  • Sample

    240524-q846bage58

  • MD5

    5b3e104a28b0fe470b49d27e6fd466de

  • SHA1

    21081cd1114148f53787375dbbf23b15bec2fbc8

  • SHA256

    e03f859ec2b9ae57590beb8d1acb4225b819e445ac638243e566f7a0466788cf

  • SHA512

    1765e99245312028831d496e890ca68c8906651a355d6304408ab1e39d812ded00e0ace00b665de7b81eaba89a570c12e88bb7e9bd3def234b209cbe4f10403e

  • SSDEEP

    3072:AolMtIr0rbOKsZM3XjcuvzrEtLWeCbMO72UVAFaZ15M9BZUHdZK1yBbEpCI3BaUx:Ao+uwDFBwWeCZ7H7ZY9cy1Ib/vQnF

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_5b3e104a28b0fe470b49d27e6fd466de_virlock

    • Size

      268KB

    • MD5

      5b3e104a28b0fe470b49d27e6fd466de

    • SHA1

      21081cd1114148f53787375dbbf23b15bec2fbc8

    • SHA256

      e03f859ec2b9ae57590beb8d1acb4225b819e445ac638243e566f7a0466788cf

    • SHA512

      1765e99245312028831d496e890ca68c8906651a355d6304408ab1e39d812ded00e0ace00b665de7b81eaba89a570c12e88bb7e9bd3def234b209cbe4f10403e

    • SSDEEP

      3072:AolMtIr0rbOKsZM3XjcuvzrEtLWeCbMO72UVAFaZ15M9BZUHdZK1yBbEpCI3BaUx:Ao+uwDFBwWeCZ7H7ZY9cy1Ib/vQnF

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (57) 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