Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    2024-04-25_1f55650a867850b488709acae194c14a_virlock

  • Size

    253KB

  • Sample

    240425-xrq1padf3t

  • MD5

    1f55650a867850b488709acae194c14a

  • SHA1

    4a96859620f28d101b7250462249de5e98d7eddd

  • SHA256

    f35df56bfd11fa3f304a908f09f9ec8a0c82a9164f0237917192fd3cc38f75fb

  • SHA512

    00857c533c64f82794b878af83d0647c2f39b6b70fb46df4628f7f3f8d6c23f48737f6dc63169a1e2270be01422b55129fa71bcddb968d9b5f6eece7b44de386

  • SSDEEP

    3072:WSLTNmw6zLVo6koonKAjcMe/tNdd+LYJhqLdddddatOUCsnF/UzT:WSL6LVGLnJ4GoeUcT

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_1f55650a867850b488709acae194c14a_virlock

    • Size

      253KB

    • MD5

      1f55650a867850b488709acae194c14a

    • SHA1

      4a96859620f28d101b7250462249de5e98d7eddd

    • SHA256

      f35df56bfd11fa3f304a908f09f9ec8a0c82a9164f0237917192fd3cc38f75fb

    • SHA512

      00857c533c64f82794b878af83d0647c2f39b6b70fb46df4628f7f3f8d6c23f48737f6dc63169a1e2270be01422b55129fa71bcddb968d9b5f6eece7b44de386

    • SSDEEP

      3072:WSLTNmw6zLVo6koonKAjcMe/tNdd+LYJhqLdddddatOUCsnF/UzT:WSL6LVGLnJ4GoeUcT

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (87) 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