Overview

overview

10

Static

static

3

2024-07-25...ck.exe

windows7-x64

10

2024-07-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-07-25_d8c13799d12aed9af5104014460ef18c_virlock

  • Size

    346KB

  • Sample

    240725-nfghfawbkr

  • MD5

    d8c13799d12aed9af5104014460ef18c

  • SHA1

    b5f709008c42a15e3c20cd10155878a79f13ce51

  • SHA256

    5996d47fff67d541bae46f771258d17f7d3c72cd9713c5ec69db2d61827b8b51

  • SHA512

    31af1f6f075931e4dc620838ffa91b49a295bfb02674b926ece19b77d849c9e6b9712cde5a58eeef1cd744314025f9d6183277dd46ba22f3027f7dad9d998e4a

  • SSDEEP

    3072:66xZwgkkctXXGUnRDN/t7WD92jeIN/ZaVatscQJTIK87XDw4CXg4tttttklWyhJ:fxZwv3RZt7WEjeI9ZHms5J

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-07-25_d8c13799d12aed9af5104014460ef18c_virlock

    • Size

      346KB

    • MD5

      d8c13799d12aed9af5104014460ef18c

    • SHA1

      b5f709008c42a15e3c20cd10155878a79f13ce51

    • SHA256

      5996d47fff67d541bae46f771258d17f7d3c72cd9713c5ec69db2d61827b8b51

    • SHA512

      31af1f6f075931e4dc620838ffa91b49a295bfb02674b926ece19b77d849c9e6b9712cde5a58eeef1cd744314025f9d6183277dd46ba22f3027f7dad9d998e4a

    • SSDEEP

      3072:66xZwgkkctXXGUnRDN/t7WD92jeIN/ZaVatscQJTIK87XDw4CXg4tttttklWyhJ:fxZwv3RZt7WEjeI9ZHms5J

    Score
    10/10
    discoveryevasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (83) 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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks