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_0070f1c014c14738b5c4a8ebd8e9b443_virlock

  • Size

    118KB

  • Sample

    240328-dx5lgsbd34

  • MD5

    0070f1c014c14738b5c4a8ebd8e9b443

  • SHA1

    20758ded0ded0f033229bf32a0792dc68a173248

  • SHA256

    b368c90891a612b734451e72b28eb7882de8459abdc939f5b2bb23597bb18201

  • SHA512

    089e6f214741c1a1099fc73abf1a8ba70fdef56eadc018d9a0be7a1f3ff6341349a3a110a758bc5a83ee1aed1439143faca52f2a1130fdff9baf0d5e7d97f6e5

  • SSDEEP

    3072:RFIq6BLnjPyBAZMx0lrPE7bXYhCwVTe+0vyCV7XhANVwjk:B6B7yLxEu0hCw9wV7hAHwjk

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-28_0070f1c014c14738b5c4a8ebd8e9b443_virlock

    • Size

      118KB

    • MD5

      0070f1c014c14738b5c4a8ebd8e9b443

    • SHA1

      20758ded0ded0f033229bf32a0792dc68a173248

    • SHA256

      b368c90891a612b734451e72b28eb7882de8459abdc939f5b2bb23597bb18201

    • SHA512

      089e6f214741c1a1099fc73abf1a8ba70fdef56eadc018d9a0be7a1f3ff6341349a3a110a758bc5a83ee1aed1439143faca52f2a1130fdff9baf0d5e7d97f6e5

    • SSDEEP

      3072:RFIq6BLnjPyBAZMx0lrPE7bXYhCwVTe+0vyCV7XhANVwjk:B6B7yLxEu0hCw9wV7hAHwjk

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (80) 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 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