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_6e9f6eeb64bbf4811875e387d539594c_virlock

  • Size

    190KB

  • Sample

    240524-q98vwsge97

  • MD5

    6e9f6eeb64bbf4811875e387d539594c

  • SHA1

    9572b46f4ae05e2aa622f4bfbf9cda6669f9406e

  • SHA256

    a30b0c083b8943dd3decaa1060781eca029e425cbb13515505508273bc86de09

  • SHA512

    63511bf2430eb766ed1e2444db97dec329477103e6cb3efab1685731203393da069fcbb86f164a834fcd06f25a5871cdaa4c79a614812b030f68b6c282bdc397

  • SSDEEP

    3072:lIhcy1CpPxuC+VpNpxXbrIhrniL4LGXlmJ22CWE+i9mZwipq9ML22cr8ml+65fT3:lVywpPQC+VpNpCrnsA7cr3dTgC

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_6e9f6eeb64bbf4811875e387d539594c_virlock

    • Size

      190KB

    • MD5

      6e9f6eeb64bbf4811875e387d539594c

    • SHA1

      9572b46f4ae05e2aa622f4bfbf9cda6669f9406e

    • SHA256

      a30b0c083b8943dd3decaa1060781eca029e425cbb13515505508273bc86de09

    • SHA512

      63511bf2430eb766ed1e2444db97dec329477103e6cb3efab1685731203393da069fcbb86f164a834fcd06f25a5871cdaa4c79a614812b030f68b6c282bdc397

    • SSDEEP

      3072:lIhcy1CpPxuC+VpNpxXbrIhrniL4LGXlmJ22CWE+i9mZwipq9ML22cr8ml+65fT3:lVywpPQC+VpNpCrnsA7cr3dTgC

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (58) 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