Overview

overview

10

Static

static

3

2024-02-19...ck.exe

windows7-x64

10

2024-02-19...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-02-19_947058fc6e134da475c97567d122a314_virlock

  • Size

    2.3MB

  • Sample

    240219-t8dvxaha48

  • MD5

    947058fc6e134da475c97567d122a314

  • SHA1

    91c9e5138e2c1afa705f6efe15fdf707e4086e88

  • SHA256

    80fbf482c4045c4b617f85b4e3db8897a236e07637af737aa520240841a9f169

  • SHA512

    ffbd16fbe5aeb009af9f37eb2c35bb1af721d5a6223567f0bc7012cb1d83347bcf3e731a757772f2983e019eb0d9a9ef5b17b4120df9e0e97626b315fcbbb6f8

  • SSDEEP

    24576:2+BQ/xzk2fuPSqbZED1BhVQy+ScRWeTAVZn+snUcmhKh5V9mLXpAMEittLZUq+Ai:25/KI2SltCRXTSxUcmPvbuqEG

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-19_947058fc6e134da475c97567d122a314_virlock

    • Size

      2.3MB

    • MD5

      947058fc6e134da475c97567d122a314

    • SHA1

      91c9e5138e2c1afa705f6efe15fdf707e4086e88

    • SHA256

      80fbf482c4045c4b617f85b4e3db8897a236e07637af737aa520240841a9f169

    • SHA512

      ffbd16fbe5aeb009af9f37eb2c35bb1af721d5a6223567f0bc7012cb1d83347bcf3e731a757772f2983e019eb0d9a9ef5b17b4120df9e0e97626b315fcbbb6f8

    • SSDEEP

      24576:2+BQ/xzk2fuPSqbZED1BhVQy+ScRWeTAVZn+snUcmhKh5V9mLXpAMEittLZUq+Ai:25/KI2SltCRXTSxUcmPvbuqEG

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (74) 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

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

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

5
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