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Overview

overview

10

Static

static

3

2024-04-09...ck.exe

windows7-x64

10

2024-04-09...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-09_7dc1554fe8dcc1622fdcb02bf7d4772c_virlock

  • Size

    361KB

  • Sample

    240409-t384vsce37

  • MD5

    7dc1554fe8dcc1622fdcb02bf7d4772c

  • SHA1

    9819313cfaa63fc04f6fd5d20aa7a3d1a4ad955b

  • SHA256

    fb73f84b059e893f0e70239b308085c691f8d7ca72c104b9064eac87bae7f1ed

  • SHA512

    2bc9d8c28f7c38c06b260fa8d0068fc21f19dcdece8c1c6790aac300d63ee21e484838e31bc43e8a7163e82c2e7e74aa433b1b181f9a6836602dfe3a61c374b8

  • SSDEEP

    6144:WDCafjEiek5GLG/CWU5lFbH9jNxLGdK6umkckj:WOMZzEq/CD5lFrBTGdmmkckj

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-09_7dc1554fe8dcc1622fdcb02bf7d4772c_virlock

    • Size

      361KB

    • MD5

      7dc1554fe8dcc1622fdcb02bf7d4772c

    • SHA1

      9819313cfaa63fc04f6fd5d20aa7a3d1a4ad955b

    • SHA256

      fb73f84b059e893f0e70239b308085c691f8d7ca72c104b9064eac87bae7f1ed

    • SHA512

      2bc9d8c28f7c38c06b260fa8d0068fc21f19dcdece8c1c6790aac300d63ee21e484838e31bc43e8a7163e82c2e7e74aa433b1b181f9a6836602dfe3a61c374b8

    • SSDEEP

      6144:WDCafjEiek5GLG/CWU5lFbH9jNxLGdK6umkckj:WOMZzEq/CD5lFrBTGdmmkckj

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (56) 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