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_495a66d59db138d4eb6c1c79b43dbe47_virlock

  • Size

    566KB

  • Sample

    240425-f6w2tagb8t

  • MD5

    495a66d59db138d4eb6c1c79b43dbe47

  • SHA1

    2ce918acb4490bce479c20eac1a429d63d5001e6

  • SHA256

    1909643b3e47a6cd66ada817b10e40725fc4ec9e4d6ec03cb432ff7a286ce0a8

  • SHA512

    adf43061696c5fa37ebe34dc8ca1414038daf4eb0e1b6ecc02e404f16cd8d3c5288ff5db4d5382fb89118e99b47dae7552f8a812c3e63268d08636fe9fb9f95b

  • SSDEEP

    12288:iIT/yObrYif/aVPDouHk+vYWgNUKd4rHCUT6hH8XV34BU:v9pf/s0qk+vYWZrTTUH8XV3SU

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_495a66d59db138d4eb6c1c79b43dbe47_virlock

    • Size

      566KB

    • MD5

      495a66d59db138d4eb6c1c79b43dbe47

    • SHA1

      2ce918acb4490bce479c20eac1a429d63d5001e6

    • SHA256

      1909643b3e47a6cd66ada817b10e40725fc4ec9e4d6ec03cb432ff7a286ce0a8

    • SHA512

      adf43061696c5fa37ebe34dc8ca1414038daf4eb0e1b6ecc02e404f16cd8d3c5288ff5db4d5382fb89118e99b47dae7552f8a812c3e63268d08636fe9fb9f95b

    • SSDEEP

      12288:iIT/yObrYif/aVPDouHk+vYWgNUKd4rHCUT6hH8XV34BU:v9pf/s0qk+vYWZrTTUH8XV3SU

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (91) 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