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Overview

overview

10

Static

static

3

2024-03-29...ck.exe

windows7-x64

10

2024-03-29...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-03-29_13f6d8509b9986f60aaa5d2651a02594_virlock

  • Size

    117KB

  • Sample

    240329-c1mz6sfh83

  • MD5

    13f6d8509b9986f60aaa5d2651a02594

  • SHA1

    92dfc39cb34688bee66f7b28649b79c3f7903bd0

  • SHA256

    868755a7eda59a0b5db15a58df3cdc78c6dec111e28c76a6928eb4ef3df7cafb

  • SHA512

    b42886a64e5a07bdcb9c9086bedffea02941b6d73aeb3856a4a1b0800e400401b639f94be53aef9e991c0ae506fd819747f0e4ce5c93f5bb4751d695cda9bb02

  • SSDEEP

    3072:0HQdeI28ZZtEAJLj64a0FSs6o4NnVrrAUUQ/iC9:HeItZnjVFN6oaVrAUB/d9

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-29_13f6d8509b9986f60aaa5d2651a02594_virlock

    • Size

      117KB

    • MD5

      13f6d8509b9986f60aaa5d2651a02594

    • SHA1

      92dfc39cb34688bee66f7b28649b79c3f7903bd0

    • SHA256

      868755a7eda59a0b5db15a58df3cdc78c6dec111e28c76a6928eb4ef3df7cafb

    • SHA512

      b42886a64e5a07bdcb9c9086bedffea02941b6d73aeb3856a4a1b0800e400401b639f94be53aef9e991c0ae506fd819747f0e4ce5c93f5bb4751d695cda9bb02

    • SSDEEP

      3072:0HQdeI28ZZtEAJLj64a0FSs6o4NnVrrAUUQ/iC9:HeItZnjVFN6oaVrAUB/d9

    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

    • Drops file in System32 directory

    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