Overview

overview

10

Static

static

3

2024-05-23...ck.exe

windows7-x64

10

2024-05-23...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-23_d7b6e79357ff8169e09b0bb9957f2cb8_virlock

  • Size

    112KB

  • Sample

    240523-jwf5dsab91

  • MD5

    d7b6e79357ff8169e09b0bb9957f2cb8

  • SHA1

    388f60d0004f86147b9cfa0a7614e6a7d4aa7037

  • SHA256

    e7ad178970d44d41da1858e77587156dddceb95301c6b33a59d7888d8aec2785

  • SHA512

    1b7104a97e76c4fe097d59cc914a580c9f3f09f283d66b61f42df6b47384e7f39c6ea15f1c389c8b1548e0915f4ce9ceb46568c3455c52b39360b2740b7b6a51

  • SSDEEP

    3072:RZ5z1+TdvOTOhY7YyqKYbLJmIBgdBC7CxzyQEOfPpzt+uUZ:R9gWTxcbKwB6jPXUZ

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-23_d7b6e79357ff8169e09b0bb9957f2cb8_virlock

    • Size

      112KB

    • MD5

      d7b6e79357ff8169e09b0bb9957f2cb8

    • SHA1

      388f60d0004f86147b9cfa0a7614e6a7d4aa7037

    • SHA256

      e7ad178970d44d41da1858e77587156dddceb95301c6b33a59d7888d8aec2785

    • SHA512

      1b7104a97e76c4fe097d59cc914a580c9f3f09f283d66b61f42df6b47384e7f39c6ea15f1c389c8b1548e0915f4ce9ceb46568c3455c52b39360b2740b7b6a51

    • SSDEEP

      3072:RZ5z1+TdvOTOhY7YyqKYbLJmIBgdBC7CxzyQEOfPpzt+uUZ:R9gWTxcbKwB6jPXUZ

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (87) 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