Overview

overview

10

Static

static

3

202405226a...ck.exe

windows7-x64

10

202405226a...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    202405226a92195e4429fa42c588eb4193d18426virlock

  • Size

    189KB

  • Sample

    240522-yam35sdg9w

  • MD5

    6a92195e4429fa42c588eb4193d18426

  • SHA1

    1ce3f60ff39f8497f47eadc456146f2bc04dc115

  • SHA256

    da42c40cc93dadc086f85f730d8c76b91aef695e4aff37929fc08cc499a8ddc1

  • SHA512

    f91b84e3e89183dea4ec0f9b44bf7595dd660659dd8a3f67e72ff0cc876497d4edf4bc4f2c52916f8343b732a35e90795662a05bbf122aeca87c82b89ce3ff2b

  • SSDEEP

    3072:lkg2UE2ZPRBrVC+bmdxyd4m52dVFMKjIcxzzql4BkVP6LQ+9Xgm:lJ2UfbBrpbaIJAuKcYBkVP6cwg

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      202405226a92195e4429fa42c588eb4193d18426virlock

    • Size

      189KB

    • MD5

      6a92195e4429fa42c588eb4193d18426

    • SHA1

      1ce3f60ff39f8497f47eadc456146f2bc04dc115

    • SHA256

      da42c40cc93dadc086f85f730d8c76b91aef695e4aff37929fc08cc499a8ddc1

    • SHA512

      f91b84e3e89183dea4ec0f9b44bf7595dd660659dd8a3f67e72ff0cc876497d4edf4bc4f2c52916f8343b732a35e90795662a05bbf122aeca87c82b89ce3ff2b

    • SSDEEP

      3072:lkg2UE2ZPRBrVC+bmdxyd4m52dVFMKjIcxzzql4BkVP6LQ+9Xgm:lJ2UfbBrpbaIJAuKcYBkVP6cwg

    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

    • Blocklisted process makes network request

    • 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 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