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Overview

overview

10

Static

static

3

2024-09-19...ck.exe

windows7-x64

10

2024-09-19...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-09-19_305450caaf5602c1b950bb8a29ccc76c_virlock

  • Size

    211KB

  • Sample

    240919-tvh8gaxhre

  • MD5

    305450caaf5602c1b950bb8a29ccc76c

  • SHA1

    c234a74d251ef75d0d2f3e9955858f736ea4c54c

  • SHA256

    c50dc8d77822382a07cfad62a25c1dc6c48efb02f6cba4c3152fab29f33533ff

  • SHA512

    e9766d2b923164b52cb4bb5266d5e8b34c7035550122b401a08cbf1799669cf718bafbc80f4ea62fe8ea9b6db3413a80eb0a39d11edb8465b5c0b15fbf823541

  • SSDEEP

    6144:rom6zra4Z4Nuq+Pd9b3odLjXIIesSwcEqo+DaZKn:r/6zra4Z4Nuq+Pd9b3odLj4pHwcEqo+b

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-09-19_305450caaf5602c1b950bb8a29ccc76c_virlock

    • Size

      211KB

    • MD5

      305450caaf5602c1b950bb8a29ccc76c

    • SHA1

      c234a74d251ef75d0d2f3e9955858f736ea4c54c

    • SHA256

      c50dc8d77822382a07cfad62a25c1dc6c48efb02f6cba4c3152fab29f33533ff

    • SHA512

      e9766d2b923164b52cb4bb5266d5e8b34c7035550122b401a08cbf1799669cf718bafbc80f4ea62fe8ea9b6db3413a80eb0a39d11edb8465b5c0b15fbf823541

    • SSDEEP

      6144:rom6zra4Z4Nuq+Pd9b3odLjXIIesSwcEqo+DaZKn:r/6zra4Z4Nuq+Pd9b3odLj4pHwcEqo+b

    Score
    10/10
    discoveryevasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (59) 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

    • 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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks