Overview

overview

10

Static

static

3

2024-09-20...ck.exe

windows7-x64

10

2024-09-20...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-09-20_e6c5435f48b5614f16ec5855e2f95a00_virlock

  • Size

    121KB

  • Sample

    240920-lk51gszfjq

  • MD5

    e6c5435f48b5614f16ec5855e2f95a00

  • SHA1

    706056a2a2d65123e156b7da1f315198934c7c69

  • SHA256

    b649d63cf8fb7ca5e87b146542d7685a2704d09a9cabbf8070e07e168611fcfb

  • SHA512

    6f1c91c70388f4a85260e200b7710bc0c568ec2d8aaedb353864dbc8ea2121fc32ec5c24dcae65813508c51b3fa21943f8912c6fd9b32c928cfc8a84b7739376

  • SSDEEP

    3072:cYTpwa9cj1PcBoUm1V/txsXtqg6r2kfeWRJIOwgDJLZzFQTVKKN86n2k0R:cYTPcjdcBxmlLoT06QR

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-09-20_e6c5435f48b5614f16ec5855e2f95a00_virlock

    • Size

      121KB

    • MD5

      e6c5435f48b5614f16ec5855e2f95a00

    • SHA1

      706056a2a2d65123e156b7da1f315198934c7c69

    • SHA256

      b649d63cf8fb7ca5e87b146542d7685a2704d09a9cabbf8070e07e168611fcfb

    • SHA512

      6f1c91c70388f4a85260e200b7710bc0c568ec2d8aaedb353864dbc8ea2121fc32ec5c24dcae65813508c51b3fa21943f8912c6fd9b32c928cfc8a84b7739376

    • SSDEEP

      3072:cYTpwa9cj1PcBoUm1V/txsXtqg6r2kfeWRJIOwgDJLZzFQTVKKN86n2k0R:cYTPcjdcBxmlLoT06QR

    Score
    10/10
    discoveryevasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (85) 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