Overview

overview

10

Static

static

3

2024-04-26...ck.exe

windows7-x64

10

2024-04-26...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-26_d03d452fd582dbca3d4c4913cc8b94f1_virlock

  • Size

    564KB

  • Sample

    240426-kea3gscg4x

  • MD5

    d03d452fd582dbca3d4c4913cc8b94f1

  • SHA1

    ced9a3791ed9224e9a3377e222f6cfe9c9b79542

  • SHA256

    4e7291e0ab5314d7ba015fcc974089eded6edc4f0fa5df08ebae5e4bc37338f9

  • SHA512

    e7762bd8b924ae6ee2f4fb06db46f3d51a81d3dec69270a5e91844a740a7cc0d3119d18f581946831482265425b32f3d04e69160e28a4e9c7da76b6bd1df9299

  • SSDEEP

    12288:9ffms3xxd2L7UEUMxH8wGxXxedFiOfKUxwAiquA1:Fms3xxQ8waxXQFiT/A

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-26_d03d452fd582dbca3d4c4913cc8b94f1_virlock

    • Size

      564KB

    • MD5

      d03d452fd582dbca3d4c4913cc8b94f1

    • SHA1

      ced9a3791ed9224e9a3377e222f6cfe9c9b79542

    • SHA256

      4e7291e0ab5314d7ba015fcc974089eded6edc4f0fa5df08ebae5e4bc37338f9

    • SHA512

      e7762bd8b924ae6ee2f4fb06db46f3d51a81d3dec69270a5e91844a740a7cc0d3119d18f581946831482265425b32f3d04e69160e28a4e9c7da76b6bd1df9299

    • SSDEEP

      12288:9ffms3xxd2L7UEUMxH8wGxXxedFiOfKUxwAiquA1:Fms3xxQ8waxXQFiT/A

    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 Matrix ATT&CK v13

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

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks