Overview

overview

10

Static

static

3

2024-03-15...ck.exe

windows7-x64

10

2024-03-15...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-15_68990b9e6c247de069deca1fbc0a776c_virlock

  • Size

    255KB

  • Sample

    240315-v57t9aed5w

  • MD5

    68990b9e6c247de069deca1fbc0a776c

  • SHA1

    b04f8a4b300debb6700cb2594ce3ad5082edb6e2

  • SHA256

    896c7884f5fac925d235665ad8fa8ffb5deecf3904d396aff3276bac2f7544f5

  • SHA512

    62309af76de67035e5aed49a74908fbe797e9848c45ba6efeb7fef627fb7e99c5c1eda80e086e87ccdf316084c6c7e3e6fb862c7b153940302dbed2b682088b9

  • SSDEEP

    3072:XDwNdFVYnZNrzQF2GWG6n8S7MW8xAuLNamd5j3PNa1NRxlDv7V:qdeZBQgGQn8S7M7b3dVMlR

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-15_68990b9e6c247de069deca1fbc0a776c_virlock

    • Size

      255KB

    • MD5

      68990b9e6c247de069deca1fbc0a776c

    • SHA1

      b04f8a4b300debb6700cb2594ce3ad5082edb6e2

    • SHA256

      896c7884f5fac925d235665ad8fa8ffb5deecf3904d396aff3276bac2f7544f5

    • SHA512

      62309af76de67035e5aed49a74908fbe797e9848c45ba6efeb7fef627fb7e99c5c1eda80e086e87ccdf316084c6c7e3e6fb862c7b153940302dbed2b682088b9

    • SSDEEP

      3072:XDwNdFVYnZNrzQF2GWG6n8S7MW8xAuLNamd5j3PNa1NRxlDv7V:qdeZBQgGQn8S7M7b3dVMlR

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (80) 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