Overview

overview

10

Static

static

3

2024-03-15...ck.exe

windows7-x64

10

2024-03-15...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-15_57512e9f93d290094d4f0ce29c7bb7af_virlock

  • Size

    255KB

  • Sample

    240315-dz2ydafc4v

  • MD5

    57512e9f93d290094d4f0ce29c7bb7af

  • SHA1

    2cdc1a3bb10fe1a4b38c3676ec9f4d66a6e0d28a

  • SHA256

    a58b9b7ce9d1c9661aa57da6d454c8ff9dc3186acae8f3ba02d60383022202ea

  • SHA512

    f8cd33a7361c4709eb86ec2c035c0274e2f18787d37162796b96373673b3438495b431da2b0510576a2df8dd3e9941e8534933a0fe44180148c63f1d2318d875

  • SSDEEP

    6144:ApJMo1IC9pc5q0bDgBCoLtbyuzD039HnZ2O:A+C9IqxxbBsHnB

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-15_57512e9f93d290094d4f0ce29c7bb7af_virlock

    • Size

      255KB

    • MD5

      57512e9f93d290094d4f0ce29c7bb7af

    • SHA1

      2cdc1a3bb10fe1a4b38c3676ec9f4d66a6e0d28a

    • SHA256

      a58b9b7ce9d1c9661aa57da6d454c8ff9dc3186acae8f3ba02d60383022202ea

    • SHA512

      f8cd33a7361c4709eb86ec2c035c0274e2f18787d37162796b96373673b3438495b431da2b0510576a2df8dd3e9941e8534933a0fe44180148c63f1d2318d875

    • SSDEEP

      6144:ApJMo1IC9pc5q0bDgBCoLtbyuzD039HnZ2O:A+C9IqxxbBsHnB

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (83) 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