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Overview

overview

10

Static

static

3

2024-01-22...ck.exe

windows7-x64

10

2024-01-22...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-01-22_01158263bbd9b49b1c1621ea2bb4ef2e_virlock

  • Size

    116KB

  • Sample

    240122-ss3nnahfhp

  • MD5

    01158263bbd9b49b1c1621ea2bb4ef2e

  • SHA1

    1e2a7a0f4254096039bc17e936c77d2091f05e32

  • SHA256

    a340458338219b9a3f87c40756e1a766e9f1ea44abf85f045ec9ff70e443bf64

  • SHA512

    67dd2987a94d03523b41d8ac5b833a011b9587e43e287ca5a87dea0f7387272b813856d12b9f89849f6914dbad8c854862c8a46adfed031df0a98ba025ab9ecc

  • SSDEEP

    3072:TsqNQ6pUhwFXfnHLhIYTlwvFM8TffLLaLAwB:TsqjGhwF/HLmYTlwtMqLLax

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-01-22_01158263bbd9b49b1c1621ea2bb4ef2e_virlock

    • Size

      116KB

    • MD5

      01158263bbd9b49b1c1621ea2bb4ef2e

    • SHA1

      1e2a7a0f4254096039bc17e936c77d2091f05e32

    • SHA256

      a340458338219b9a3f87c40756e1a766e9f1ea44abf85f045ec9ff70e443bf64

    • SHA512

      67dd2987a94d03523b41d8ac5b833a011b9587e43e287ca5a87dea0f7387272b813856d12b9f89849f6914dbad8c854862c8a46adfed031df0a98ba025ab9ecc

    • SSDEEP

      3072:TsqNQ6pUhwFXfnHLhIYTlwvFM8TffLLaLAwB:TsqjGhwF/HLmYTlwtMqLLax

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (90) 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.

    • Deletes itself

    • 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

    • Checks whether UAC is enabled

      evasiontrojan

    • 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

5
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks