Overview

overview

10

Static

static

3

2024-05-22...ck.exe

windows7-x64

10

2024-05-22...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-05-22_603265859f744615bb91f46a55c837ef_virlock

  • Size

    206KB

  • Sample

    240522-1jh7nahg4w

  • MD5

    603265859f744615bb91f46a55c837ef

  • SHA1

    3092544ff20a4dfbc93b9f40df451b0530921e42

  • SHA256

    99bd1785216647cb7ae901102b93771477fd8659027902cd769c2c5a75490645

  • SHA512

    b8aca8d07f5997f5d527ab88521fa8d5ab1db52318e8b12ad08e0a8e9e111c64e7b995b29f263259eda16c82cf046335cc49be5e3d4b7f0151932f1b1d650f30

  • SSDEEP

    3072:ZarrtQNBGldrMfEU+l9Srlru/k1Za42DeH/gF34qCfEmMuv+QUkC6BM6a/:srrtQizrY8aoHV4vJ5veMM6

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-22_603265859f744615bb91f46a55c837ef_virlock

    • Size

      206KB

    • MD5

      603265859f744615bb91f46a55c837ef

    • SHA1

      3092544ff20a4dfbc93b9f40df451b0530921e42

    • SHA256

      99bd1785216647cb7ae901102b93771477fd8659027902cd769c2c5a75490645

    • SHA512

      b8aca8d07f5997f5d527ab88521fa8d5ab1db52318e8b12ad08e0a8e9e111c64e7b995b29f263259eda16c82cf046335cc49be5e3d4b7f0151932f1b1d650f30

    • SSDEEP

      3072:ZarrtQNBGldrMfEU+l9Srlru/k1Za42DeH/gF34qCfEmMuv+QUkC6BM6a/:srrtQizrY8aoHV4vJ5veMM6

    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