Overview

overview

10

Static

static

3

2024-05-31...ck.exe

windows7-x64

10

2024-05-31...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-05-31_95f026807d5d07681d77c6952b5ce923_virlock

  • Size

    566KB

  • Sample

    240531-wtk2sagb9w

  • MD5

    95f026807d5d07681d77c6952b5ce923

  • SHA1

    5d2ed18facb847da75ee81d8bb893a91e94bdbd6

  • SHA256

    60342fabd927ac2c06d5051c1430d2f65ef184a752d6d3bb2cf603854b678747

  • SHA512

    4bc6bb669e285356e8a13fbfd046e76ac42e48eda95149d8e44a0e3ce96ca92f05ef0a7e145acbe3443d56fde02e4a34c226c777c9c71da853cc52322962afbb

  • SSDEEP

    12288:x7Z91anf6robqPNc3n3m1jLh/8C8e3hZMrU0wzm:x191af60ePq3nsl8C

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-31_95f026807d5d07681d77c6952b5ce923_virlock

    • Size

      566KB

    • MD5

      95f026807d5d07681d77c6952b5ce923

    • SHA1

      5d2ed18facb847da75ee81d8bb893a91e94bdbd6

    • SHA256

      60342fabd927ac2c06d5051c1430d2f65ef184a752d6d3bb2cf603854b678747

    • SHA512

      4bc6bb669e285356e8a13fbfd046e76ac42e48eda95149d8e44a0e3ce96ca92f05ef0a7e145acbe3443d56fde02e4a34c226c777c9c71da853cc52322962afbb

    • SSDEEP

      12288:x7Z91anf6robqPNc3n3m1jLh/8C8e3hZMrU0wzm:x191af60ePq3nsl8C

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (86) 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