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_925da9c07a1724eb13f4fb9d1b3e0a87_virlock

  • Size

    644KB

  • Sample

    240525-hey37she91

  • MD5

    925da9c07a1724eb13f4fb9d1b3e0a87

  • SHA1

    1fc9fc301f16e80d74df87b0c62d4c77be599b3d

  • SHA256

    0b7f5b50256b6a6853c3cc65306414fb23293c09e994f59cced0dab205a23ac5

  • SHA512

    4d6dc18a65cc2c3a30df14439b8b506c0ac616e7b1093a523e2825a38de68c1168e74e7ceabe4e685af393c224255d0379e9acbf52279588b20abfc97ba60608

  • SSDEEP

    12288:WHrrh1Iu25PHvdcDa14HZtYnQ6KWIV5+fU:EHvgHVYMErYQ6tm+fU

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_925da9c07a1724eb13f4fb9d1b3e0a87_virlock

    • Size

      644KB

    • MD5

      925da9c07a1724eb13f4fb9d1b3e0a87

    • SHA1

      1fc9fc301f16e80d74df87b0c62d4c77be599b3d

    • SHA256

      0b7f5b50256b6a6853c3cc65306414fb23293c09e994f59cced0dab205a23ac5

    • SHA512

      4d6dc18a65cc2c3a30df14439b8b506c0ac616e7b1093a523e2825a38de68c1168e74e7ceabe4e685af393c224255d0379e9acbf52279588b20abfc97ba60608

    • SSDEEP

      12288:WHrrh1Iu25PHvdcDa14HZtYnQ6KWIV5+fU:EHvgHVYMErYQ6tm+fU

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (61) 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
    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