Overview

overview

10

Static

static

3

2024-05-25...ck.exe

windows7-x64

10

2024-05-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-25_c6c027795376ea1a65ce1babefc0f64c_virlock

  • Size

    2.5MB

  • Sample

    240525-ytt1ssge8t

  • MD5

    c6c027795376ea1a65ce1babefc0f64c

  • SHA1

    0a80131e3041bf44d15e73e3e14ca0b6dd6271d1

  • SHA256

    03730571200761312f58b10ad1b3072a46f84346054e8c5ad98306bb178d0d56

  • SHA512

    bc807f5b2dad1e54e2ecd09d92b0b01815e8230df91815f193255ad4dd7a7802149e040611f6a1bf370785e84b3b503e7034e58c1e9b96b7bc1dd503b212fb71

  • SSDEEP

    49152:dBRZdz1k16DubMeqPlghlN7M+O4CJ+UlZ/HUo4Uo8N:/FA1

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_c6c027795376ea1a65ce1babefc0f64c_virlock

    • Size

      2.5MB

    • MD5

      c6c027795376ea1a65ce1babefc0f64c

    • SHA1

      0a80131e3041bf44d15e73e3e14ca0b6dd6271d1

    • SHA256

      03730571200761312f58b10ad1b3072a46f84346054e8c5ad98306bb178d0d56

    • SHA512

      bc807f5b2dad1e54e2ecd09d92b0b01815e8230df91815f193255ad4dd7a7802149e040611f6a1bf370785e84b3b503e7034e58c1e9b96b7bc1dd503b212fb71

    • SSDEEP

      49152:dBRZdz1k16DubMeqPlghlN7M+O4CJ+UlZ/HUo4Uo8N:/FA1

    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.

    • 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