Overview

overview

10

Static

static

3

2024-05-22...ck.exe

windows7-x64

10

2024-05-22...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-05-22_40a0f08f8ceb929f709507c4f8e5de6e_virlock

  • Size

    942KB

  • Sample

    240522-zwbgxage6x

  • MD5

    40a0f08f8ceb929f709507c4f8e5de6e

  • SHA1

    7385b0b3989f5acd097f274818eabbe9fd2a96ad

  • SHA256

    edfe85d5aaf502eeacb3c35968db2684a53c50acdd54a4e7f545778e772e2895

  • SHA512

    fc4f77d3d58519791f7a5e1fc814fc8c68d0e9a38d8cacbddd076fb1097ab77f5b1f87e122b757289611bc1d67c2c37007ae68ec1c32b5588c090f6111591ab9

  • SSDEEP

    24576:V6roiwLpXxrJIfZar0jZPrFfOSl8QU/W:c6xxuRaAFPrcnQ

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-22_40a0f08f8ceb929f709507c4f8e5de6e_virlock

    • Size

      942KB

    • MD5

      40a0f08f8ceb929f709507c4f8e5de6e

    • SHA1

      7385b0b3989f5acd097f274818eabbe9fd2a96ad

    • SHA256

      edfe85d5aaf502eeacb3c35968db2684a53c50acdd54a4e7f545778e772e2895

    • SHA512

      fc4f77d3d58519791f7a5e1fc814fc8c68d0e9a38d8cacbddd076fb1097ab77f5b1f87e122b757289611bc1d67c2c37007ae68ec1c32b5588c090f6111591ab9

    • SSDEEP

      24576:V6roiwLpXxrJIfZar0jZPrFfOSl8QU/W:c6xxuRaAFPrcnQ

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (53) 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.

    • Deletes itself

    • 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