Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-25_dcd9b6aa9fd9f5c3565c6d5eeeedf001_virlock

  • Size

    117KB

  • Sample

    240425-rvq7zabe9w

  • MD5

    dcd9b6aa9fd9f5c3565c6d5eeeedf001

  • SHA1

    e235b5e1532ab8dea0712389736124b64c3c639f

  • SHA256

    bf71b1cf3516a2ad02efdda83c6f902e7139db69c1035a7e653ed09f5d27cbbc

  • SHA512

    149d939a2b9c9c31a562168aa2a74302eb2251908eabda9ed99f8ab099742b181f32f494d664e5104ffdb3e8404d9a1831525ddc93a9826ac30c452c6026c820

  • SSDEEP

    3072:gmzm/wcqGwew9jmuv7/P1xCYAt3VQgQrnP/:wocml/aht3uNrnP/

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_dcd9b6aa9fd9f5c3565c6d5eeeedf001_virlock

    • Size

      117KB

    • MD5

      dcd9b6aa9fd9f5c3565c6d5eeeedf001

    • SHA1

      e235b5e1532ab8dea0712389736124b64c3c639f

    • SHA256

      bf71b1cf3516a2ad02efdda83c6f902e7139db69c1035a7e653ed09f5d27cbbc

    • SHA512

      149d939a2b9c9c31a562168aa2a74302eb2251908eabda9ed99f8ab099742b181f32f494d664e5104ffdb3e8404d9a1831525ddc93a9826ac30c452c6026c820

    • SSDEEP

      3072:gmzm/wcqGwew9jmuv7/P1xCYAt3VQgQrnP/:wocml/aht3uNrnP/

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (79) 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
    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