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_5c829f1a956645f3ab2b77d845cfe009_virlock

  • Size

    137KB

  • Sample

    240919-qp66ka1enj

  • MD5

    5c829f1a956645f3ab2b77d845cfe009

  • SHA1

    460903ca3e2923b6dc181b63f123bb5166a81c72

  • SHA256

    889e3b39892130cae36e606749523130568bb67d20a3775353f0357d8273f563

  • SHA512

    5b86761d0e3c974121f7e00ee4efb39dd75ecc74989e0594e733558b57087128b3aadadc266a26733e92087f53e3896452f7df509f85e7e60176d2ce88178eb6

  • SSDEEP

    3072:lRykCo9nQ6hJWcxZWuOznhfP1li2abmwBIw5pBMXCj9FA:lRbCo9fhH7WuOzhP1A2ImwBImMXC3

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-09-19_5c829f1a956645f3ab2b77d845cfe009_virlock

    • Size

      137KB

    • MD5

      5c829f1a956645f3ab2b77d845cfe009

    • SHA1

      460903ca3e2923b6dc181b63f123bb5166a81c72

    • SHA256

      889e3b39892130cae36e606749523130568bb67d20a3775353f0357d8273f563

    • SHA512

      5b86761d0e3c974121f7e00ee4efb39dd75ecc74989e0594e733558b57087128b3aadadc266a26733e92087f53e3896452f7df509f85e7e60176d2ce88178eb6

    • SSDEEP

      3072:lRykCo9nQ6hJWcxZWuOznhfP1li2abmwBIw5pBMXCj9FA:lRbCo9fhH7WuOzhP1A2ImwBImMXC3

    Score
    10/10
    discoveryevasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (51) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Blocklisted process makes network request

    • 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

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