Overview

overview

10

Static

static

3

2024-04-26...ck.exe

windows7-x64

10

2024-04-26...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-26_cbe9850c2816fd455d86d34307191f40_virlock

  • Size

    230KB

  • Sample

    240426-qsk3hadc9s

  • MD5

    cbe9850c2816fd455d86d34307191f40

  • SHA1

    f99e2f2aa20a6d7f7f4ddcbb965c7ab0c219aad1

  • SHA256

    8585878824b3bcf4b910f256a5847a34731a8d9899496b8dbbd2bedefc2831c0

  • SHA512

    59ccd54a493f3d9f51747455b9ef477392624ae463de6b7ef17a12f5ee22d91586048b0a451f3c56f94eceea4065a0b40e922c6f53e294cd5168294558c02493

  • SSDEEP

    3072:wDRWJ32AKZWMk+vbL2A7Ktg7BwKzW/+M6pOl7Ul0g9TRYLU9Qo6v29Etl9M5t:AMmAmWMf/EEwKi/DV47rEtl9M5t

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-26_cbe9850c2816fd455d86d34307191f40_virlock

    • Size

      230KB

    • MD5

      cbe9850c2816fd455d86d34307191f40

    • SHA1

      f99e2f2aa20a6d7f7f4ddcbb965c7ab0c219aad1

    • SHA256

      8585878824b3bcf4b910f256a5847a34731a8d9899496b8dbbd2bedefc2831c0

    • SHA512

      59ccd54a493f3d9f51747455b9ef477392624ae463de6b7ef17a12f5ee22d91586048b0a451f3c56f94eceea4065a0b40e922c6f53e294cd5168294558c02493

    • SSDEEP

      3072:wDRWJ32AKZWMk+vbL2A7Ktg7BwKzW/+M6pOl7Ul0g9TRYLU9Qo6v29Etl9M5t:AMmAmWMf/EEwKi/DV47rEtl9M5t

    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