Overview

overview

10

Static

static

3

2024-05-22...ck.exe

windows7-x64

10

2024-05-22...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-22_b37a46bf22cfbf0d0778d86e3cd4a291_virlock

  • Size

    199KB

  • Sample

    240522-w1zthsbg8x

  • MD5

    b37a46bf22cfbf0d0778d86e3cd4a291

  • SHA1

    df139881cb499f2c5c969dca70ff5169b6d18cdc

  • SHA256

    295b665587965925c3cffcc01427d4b74230b75b158ea91756f7a9fefed59ae6

  • SHA512

    3ef1ff47684ee5a6987cf01d1e569488e748d9aa1231dcebf293def2ebee13efbcf5624cb2240e3fd4c1b3fc18f314122f401bc72519644178736401c9d8304a

  • SSDEEP

    6144:wgd5nBg6zQ2jPO7WeKFrhEG3MZMrmMQaMO7m3m6n+YRSdW4f4O4Q44l2Ji7o0TDs:F5nrQ2jPO7WeKFrhEG3MZMrTPmWjYRa4

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-22_b37a46bf22cfbf0d0778d86e3cd4a291_virlock

    • Size

      199KB

    • MD5

      b37a46bf22cfbf0d0778d86e3cd4a291

    • SHA1

      df139881cb499f2c5c969dca70ff5169b6d18cdc

    • SHA256

      295b665587965925c3cffcc01427d4b74230b75b158ea91756f7a9fefed59ae6

    • SHA512

      3ef1ff47684ee5a6987cf01d1e569488e748d9aa1231dcebf293def2ebee13efbcf5624cb2240e3fd4c1b3fc18f314122f401bc72519644178736401c9d8304a

    • SSDEEP

      6144:wgd5nBg6zQ2jPO7WeKFrhEG3MZMrmMQaMO7m3m6n+YRSdW4f4O4Q44l2Ji7o0TDs:F5nrQ2jPO7WeKFrhEG3MZMrTPmWjYRa4

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (65) 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 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