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Overview

overview

10

Static

static

3

2024-04-05...ck.exe

windows7-x64

10

2024-04-05...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-05_5833a10bca0cc3f8abfa83cb9a0f0732_virlock

  • Size

    371KB

  • Sample

    240405-pqfjkaca9z

  • MD5

    5833a10bca0cc3f8abfa83cb9a0f0732

  • SHA1

    057f4950d76b429ad8e3311d245b54ec3871c69c

  • SHA256

    2e0d6dac0f35836e65cc9b92e0305bc6dae2d5a7c98a28e28c461ba9eb0a24d7

  • SHA512

    8a8d39ec4d18614634ce64d3afcbda06146f3b55e13fc670e8d3b9306020c19e8fe29a294e306522952a9bccb2f54ee506dd0e487f95856c8fcf08ac5880c596

  • SSDEEP

    6144:heDE1eWBqolLPHCdQ5EIKH1oSICUCK78JC8S6Z:EDEsolrHyQ8/Z

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-05_5833a10bca0cc3f8abfa83cb9a0f0732_virlock

    • Size

      371KB

    • MD5

      5833a10bca0cc3f8abfa83cb9a0f0732

    • SHA1

      057f4950d76b429ad8e3311d245b54ec3871c69c

    • SHA256

      2e0d6dac0f35836e65cc9b92e0305bc6dae2d5a7c98a28e28c461ba9eb0a24d7

    • SHA512

      8a8d39ec4d18614634ce64d3afcbda06146f3b55e13fc670e8d3b9306020c19e8fe29a294e306522952a9bccb2f54ee506dd0e487f95856c8fcf08ac5880c596

    • SSDEEP

      6144:heDE1eWBqolLPHCdQ5EIKH1oSICUCK78JC8S6Z:EDEsolrHyQ8/Z

    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