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_65221df949059dbd698ac2baa0a86bb2_virlock

  • Size

    138KB

  • Sample

    240425-r89apsbg76

  • MD5

    65221df949059dbd698ac2baa0a86bb2

  • SHA1

    ddb034b8ae17c9501379070ae723c8295963a594

  • SHA256

    f55ab7250b023f6793ec36a89b263c40407f91b2031f6216e0f5c43193eff418

  • SHA512

    ac9195b12a1b4db6660070a5da8e9a916d5d3d15ffa58c63194023a2198815a8af90ed4f2f6271d79f961ea491c6918fc5a5bd3cc16cec2b10e0ee9f935f480f

  • SSDEEP

    3072:3yaF8/IP02kjSdoiA96eaiYfMR2r2bvdKrJNocnOCG9rpl7UkQuHmv:yWyY6vwacnBG9ppNJc

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_65221df949059dbd698ac2baa0a86bb2_virlock

    • Size

      138KB

    • MD5

      65221df949059dbd698ac2baa0a86bb2

    • SHA1

      ddb034b8ae17c9501379070ae723c8295963a594

    • SHA256

      f55ab7250b023f6793ec36a89b263c40407f91b2031f6216e0f5c43193eff418

    • SHA512

      ac9195b12a1b4db6660070a5da8e9a916d5d3d15ffa58c63194023a2198815a8af90ed4f2f6271d79f961ea491c6918fc5a5bd3cc16cec2b10e0ee9f935f480f

    • SSDEEP

      3072:3yaF8/IP02kjSdoiA96eaiYfMR2r2bvdKrJNocnOCG9rpl7UkQuHmv:yWyY6vwacnBG9ppNJc

    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.

    • 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