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Overview

overview

10

Static

static

3

2024-02-22...ck.exe

windows7-x64

10

2024-02-22...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-02-22_8d9342dce7dee241c068359f49aa3563_virlock

  • Size

    256KB

  • Sample

    240222-rca32aba84

  • MD5

    8d9342dce7dee241c068359f49aa3563

  • SHA1

    a78956f479db2ab0a8ff963ea4e124bad70acee6

  • SHA256

    a51abffc28e428347b3d11066108f73215c835d8bfac376460e39d5aa697b89a

  • SHA512

    a5c99a369ce5f7de13064af6b9a01ae816589520c3ccedb9a1888fe69ff23a4e7686064f451f4a2b675b3661209bc716cb924e095ddaf585315f8f78d44fe1a9

  • SSDEEP

    3072:UrITZljwzD5yCIPgBw1SfGsiLkwBGax5BM1+993hlLi4hL5x0eE/x/8oWr/yF:MeTwPtNwkwBdxs+3hlLLZY/8oc4

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-22_8d9342dce7dee241c068359f49aa3563_virlock

    • Size

      256KB

    • MD5

      8d9342dce7dee241c068359f49aa3563

    • SHA1

      a78956f479db2ab0a8ff963ea4e124bad70acee6

    • SHA256

      a51abffc28e428347b3d11066108f73215c835d8bfac376460e39d5aa697b89a

    • SHA512

      a5c99a369ce5f7de13064af6b9a01ae816589520c3ccedb9a1888fe69ff23a4e7686064f451f4a2b675b3661209bc716cb924e095ddaf585315f8f78d44fe1a9

    • SSDEEP

      3072:UrITZljwzD5yCIPgBw1SfGsiLkwBGax5BM1+993hlLi4hL5x0eE/x/8oWr/yF:MeTwPtNwkwBdxs+3hlLLZY/8oc4

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (81) 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 Enterprise v15

Reconnaissance

Resource Development

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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

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

Command and Control

Exfiltration

Impact

Tasks