Overview

overview

10

Static

static

3

2024-03-28...ck.exe

windows7-x64

10

2024-03-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-28_32141e5bea2a7567e575bb15bccfec28_virlock

  • Size

    253KB

  • Sample

    240328-jwx3xade97

  • MD5

    32141e5bea2a7567e575bb15bccfec28

  • SHA1

    fe487b374d65469ea62f79b7add7899598208391

  • SHA256

    564a8ad5d6e4abab889d4a41ed73dcf1269dc37305f425291f167e94700a3158

  • SHA512

    132ba445a4ad38e3070cb4198aee0111080a1c7ff125d2118f8d24fa2ec5e8e74fad785884002cef945484623855d3ac2f3c3da4ff3be9bc4322211284ff5845

  • SSDEEP

    6144:ywNYCYGtJYmJ0V89sUKq4jp6uvglYMMw4K+XI+r8eakcc8c8c8vpicO3:yivY0qmJ0V89sUKq4jp6uvglEK+XI+rH

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-28_32141e5bea2a7567e575bb15bccfec28_virlock

    • Size

      253KB

    • MD5

      32141e5bea2a7567e575bb15bccfec28

    • SHA1

      fe487b374d65469ea62f79b7add7899598208391

    • SHA256

      564a8ad5d6e4abab889d4a41ed73dcf1269dc37305f425291f167e94700a3158

    • SHA512

      132ba445a4ad38e3070cb4198aee0111080a1c7ff125d2118f8d24fa2ec5e8e74fad785884002cef945484623855d3ac2f3c3da4ff3be9bc4322211284ff5845

    • SSDEEP

      6144:ywNYCYGtJYmJ0V89sUKq4jp6uvglYMMw4K+XI+r8eakcc8c8c8vpicO3:yivY0qmJ0V89sUKq4jp6uvglEK+XI+rH

    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
    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