Overview

overview

10

Static

static

3

2024-02-12...ck.exe

windows7-x64

10

2024-02-12...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-02-12_fe740c053f2bfd4836b87a4f8d37cd5e_virlock

  • Size

    255KB

  • Sample

    240212-w6c7psah8w

  • MD5

    fe740c053f2bfd4836b87a4f8d37cd5e

  • SHA1

    8a482343ad41d1d243c4f6321ebddf76cd771741

  • SHA256

    9c288a6497dacef24b773cc33c976e9c67f237f13f2507e51cee2a551276f343

  • SHA512

    f48437908385609b6f78f34a1689dd9ef9cf24d18fa0ddfd9e5d11f83a58e33f41f99d152c5fea8a92e562849284338c25d575956ea11d581ea8d4d9adaab0c7

  • SSDEEP

    6144:NRQxxoiUbjtuXM+vyR2geVCcmBwn+g4qlCz:/QxxnUXtuXMR2DVCcaw+g4qcz

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-12_fe740c053f2bfd4836b87a4f8d37cd5e_virlock

    • Size

      255KB

    • MD5

      fe740c053f2bfd4836b87a4f8d37cd5e

    • SHA1

      8a482343ad41d1d243c4f6321ebddf76cd771741

    • SHA256

      9c288a6497dacef24b773cc33c976e9c67f237f13f2507e51cee2a551276f343

    • SHA512

      f48437908385609b6f78f34a1689dd9ef9cf24d18fa0ddfd9e5d11f83a58e33f41f99d152c5fea8a92e562849284338c25d575956ea11d581ea8d4d9adaab0c7

    • SSDEEP

      6144:NRQxxoiUbjtuXM+vyR2geVCcmBwn+g4qlCz:/QxxnUXtuXMR2DVCcaw+g4qcz

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (88) 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