Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-25_4d2a0000e8b80138e34fff2160604a43_virlock

  • Size

    117KB

  • Sample

    240425-rre1jabf42

  • MD5

    4d2a0000e8b80138e34fff2160604a43

  • SHA1

    3b0293b47fcb08075e55ae1c1af3422efc8ef7ec

  • SHA256

    a5e72172323fd43fec1f6bdd73a814ab16dc3b29d3b211ec8ddcc7032c35a706

  • SHA512

    6500bebcea9874c11742d5a85458a0c9ae2c118ae97723c350b0cbdad8078bacb4fae64cf80c6a6b9e403f3c9aaad5537a1c0dfe027ed9d0e175b88fe744a3e4

  • SSDEEP

    3072:VQVFWhYyfIUBJjgcSv8aJ9QkHs4iqxIfr6adnBa8+RCoo:Vvh3dBJ28aB/Iz6+Ba7RCv

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_4d2a0000e8b80138e34fff2160604a43_virlock

    • Size

      117KB

    • MD5

      4d2a0000e8b80138e34fff2160604a43

    • SHA1

      3b0293b47fcb08075e55ae1c1af3422efc8ef7ec

    • SHA256

      a5e72172323fd43fec1f6bdd73a814ab16dc3b29d3b211ec8ddcc7032c35a706

    • SHA512

      6500bebcea9874c11742d5a85458a0c9ae2c118ae97723c350b0cbdad8078bacb4fae64cf80c6a6b9e403f3c9aaad5537a1c0dfe027ed9d0e175b88fe744a3e4

    • SSDEEP

      3072:VQVFWhYyfIUBJjgcSv8aJ9QkHs4iqxIfr6adnBa8+RCoo:Vvh3dBJ28aB/Iz6+Ba7RCv

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (81) 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