Overview

overview

10

Static

static

3

2024-03-28...ck.exe

windows7-x64

10

2024-03-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-28_ed4bdb35bf4461400d0755484071528f_virlock

  • Size

    183KB

  • Sample

    240328-mwne9aaf9x

  • MD5

    ed4bdb35bf4461400d0755484071528f

  • SHA1

    7cb4fe8abe03bcaedcdc7c32079540253ed4b172

  • SHA256

    add913b89407d86acebc808797a7b9872853c340739cd96e248a2bca34f85737

  • SHA512

    f0f8253d44fea75b41ec2742e7c545ab40b302a35c6b85befa52605710d54a44dd532920dcd005a13a57505e8181dfa020d59edd5557731287fd13f977f97ae6

  • SSDEEP

    3072:ZdartfXiKHZ4kNwvMUm/FyZCF1tQ8+LZsRvexe+2X/kFc+D4RxHdwKYpSw5tiU6d:GZ7ZhwvMUm9yZCF1tQ8+LZsRvexe+2Xk

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-28_ed4bdb35bf4461400d0755484071528f_virlock

    • Size

      183KB

    • MD5

      ed4bdb35bf4461400d0755484071528f

    • SHA1

      7cb4fe8abe03bcaedcdc7c32079540253ed4b172

    • SHA256

      add913b89407d86acebc808797a7b9872853c340739cd96e248a2bca34f85737

    • SHA512

      f0f8253d44fea75b41ec2742e7c545ab40b302a35c6b85befa52605710d54a44dd532920dcd005a13a57505e8181dfa020d59edd5557731287fd13f977f97ae6

    • SSDEEP

      3072:ZdartfXiKHZ4kNwvMUm/FyZCF1tQ8+LZsRvexe+2X/kFc+D4RxHdwKYpSw5tiU6d:GZ7ZhwvMUm9yZCF1tQ8+LZsRvexe+2Xk

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (73) 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