Overview

overview

10

Static

static

3

2024-05-27...ck.exe

windows7-x64

10

2024-05-27...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-27_4acc4a7f7a89b93e0e50b2d85c1b2363_virlock

  • Size

    212KB

  • Sample

    240527-g8v3zabh27

  • MD5

    4acc4a7f7a89b93e0e50b2d85c1b2363

  • SHA1

    05c4f051c8b92cc651cd1ff7588e9bf686c65a34

  • SHA256

    5f855cbacdc5213f8ce45669679fd1cd43ba2ecf58c994ee296ce8946ab76e32

  • SHA512

    189f43c38d4b8d07532bf410d951a497f23cb9fae2171267221218aca45c6c8dd70b048b493a961db107acfcc33fa342f6190217fd8b1f6a400b7a03638b4687

  • SSDEEP

    6144:Xh+hGh3PUsvh5PvjKmbdinSQOu1xlRkPoNXhnjw:BW8h5PO0ebOQRkPihnjw

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-27_4acc4a7f7a89b93e0e50b2d85c1b2363_virlock

    • Size

      212KB

    • MD5

      4acc4a7f7a89b93e0e50b2d85c1b2363

    • SHA1

      05c4f051c8b92cc651cd1ff7588e9bf686c65a34

    • SHA256

      5f855cbacdc5213f8ce45669679fd1cd43ba2ecf58c994ee296ce8946ab76e32

    • SHA512

      189f43c38d4b8d07532bf410d951a497f23cb9fae2171267221218aca45c6c8dd70b048b493a961db107acfcc33fa342f6190217fd8b1f6a400b7a03638b4687

    • SSDEEP

      6144:Xh+hGh3PUsvh5PvjKmbdinSQOu1xlRkPoNXhnjw:BW8h5PO0ebOQRkPihnjw

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (59) 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