Overview

overview

10

Static

static

3

2024-09-20...ck.exe

windows7-x64

10

2024-09-20...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-09-20_777b4eea77bf053ebb78494e7738687d_virlock

  • Size

    564KB

  • Sample

    240920-mr8kmasbrf

  • MD5

    777b4eea77bf053ebb78494e7738687d

  • SHA1

    431a70c40d21838f54489b455eb6aea89e87cf7a

  • SHA256

    9fbe24d3c10f3d66bb1171cf7a600ed818b497a8ec5a228af297d0bec5af0ca8

  • SHA512

    0bce04049130df39212eb11f4a24836b3bffd4288c1868da3b3e0cfe0e40c21e1cd0e3557f0aed25cd7b90379c92b8aaa6828f7142a5011ca0fab0fcd999f7e1

  • SSDEEP

    6144:U5a2noxC51GyIyAm39hjks1XfsLM3qKflUzefNeCq/6wsOIEhipPa8M/Ab/JkxTm:KaeCyso9hLfsI3bDeIOkpXITS

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-09-20_777b4eea77bf053ebb78494e7738687d_virlock

    • Size

      564KB

    • MD5

      777b4eea77bf053ebb78494e7738687d

    • SHA1

      431a70c40d21838f54489b455eb6aea89e87cf7a

    • SHA256

      9fbe24d3c10f3d66bb1171cf7a600ed818b497a8ec5a228af297d0bec5af0ca8

    • SHA512

      0bce04049130df39212eb11f4a24836b3bffd4288c1868da3b3e0cfe0e40c21e1cd0e3557f0aed25cd7b90379c92b8aaa6828f7142a5011ca0fab0fcd999f7e1

    • SSDEEP

      6144:U5a2noxC51GyIyAm39hjks1XfsLM3qKflUzefNeCq/6wsOIEhipPa8M/Ab/JkxTm:KaeCyso9hLfsI3bDeIOkpXITS

    Score
    10/10
    discoveryevasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (77) 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

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