Overview

overview

10

Static

static

3

2024-05-23...ck.exe

windows7-x64

10

2024-05-23...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-23_1e24dff3034f3fd4edb5752013f58b8a_virlock

  • Size

    112KB

  • Sample

    240523-kdwb2aag8v

  • MD5

    1e24dff3034f3fd4edb5752013f58b8a

  • SHA1

    d93c3e3a944df7494d075cd7d4df88ee2f872bf3

  • SHA256

    b1057a8f78bc69f808aaf005b1a003aeb8864e35d76a62fe79bae0e48a01832f

  • SHA512

    658a05b802812ab81875ee72e14dc91a040bc585ccaf07583ac4c602a837bb4f7f44b2d405727b5a48d53e08af9047a9515cc4262902157caa1fd699d645befb

  • SSDEEP

    3072:y49tbOqaM/iLI2j5lRsOb8ZJvfsArz0Oa02SBgI5TtV:ymFOqaMq8klv8ZJvfdro02SBgI5TtV

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-23_1e24dff3034f3fd4edb5752013f58b8a_virlock

    • Size

      112KB

    • MD5

      1e24dff3034f3fd4edb5752013f58b8a

    • SHA1

      d93c3e3a944df7494d075cd7d4df88ee2f872bf3

    • SHA256

      b1057a8f78bc69f808aaf005b1a003aeb8864e35d76a62fe79bae0e48a01832f

    • SHA512

      658a05b802812ab81875ee72e14dc91a040bc585ccaf07583ac4c602a837bb4f7f44b2d405727b5a48d53e08af9047a9515cc4262902157caa1fd699d645befb

    • SSDEEP

      3072:y49tbOqaM/iLI2j5lRsOb8ZJvfsArz0Oa02SBgI5TtV:ymFOqaMq8klv8ZJvfdro02SBgI5TtV

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (79) 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
    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