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_b07e54c4de9a0aef6bfc68a717e60303_virlock

  • Size

    124KB

  • Sample

    240725-l2w4xavfla

  • MD5

    b07e54c4de9a0aef6bfc68a717e60303

  • SHA1

    f4ec76c8e8b6b19de773fbd48231f58d0715fbb9

  • SHA256

    747d83b2902f537c29a589abd2686c43c583699b29736f590812d8900ec6a7d7

  • SHA512

    737e9b6fb75ef7d809c393ab30d0ec0def4c4a107d3150575e4f219083b708a20147ed4306a691733ec461554fbe40c01f30121cd2d7c731e0ef34398f52db3d

  • SSDEEP

    3072:Z6Rcw0nieHyXdpghOOOxdJ8avmVknulaw6pb0RA6Xm:wd6D7hOOOxdCavm2nul1A

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-07-25_b07e54c4de9a0aef6bfc68a717e60303_virlock

    • Size

      124KB

    • MD5

      b07e54c4de9a0aef6bfc68a717e60303

    • SHA1

      f4ec76c8e8b6b19de773fbd48231f58d0715fbb9

    • SHA256

      747d83b2902f537c29a589abd2686c43c583699b29736f590812d8900ec6a7d7

    • SHA512

      737e9b6fb75ef7d809c393ab30d0ec0def4c4a107d3150575e4f219083b708a20147ed4306a691733ec461554fbe40c01f30121cd2d7c731e0ef34398f52db3d

    • SSDEEP

      3072:Z6Rcw0nieHyXdpghOOOxdJ8avmVknulaw6pb0RA6Xm:wd6D7hOOOxdCavm2nul1A

    Score
    10/10
    discoveryevasionpersistencespywarestealertrojanransomware

    • 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.

    • Deletes itself

    • 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