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_884d69e88b33f7ed2f57ebb85b51b79c_virlock

  • Size

    253KB

  • Sample

    240328-mgtcysad4v

  • MD5

    884d69e88b33f7ed2f57ebb85b51b79c

  • SHA1

    50e07dc95ad14a40a51ac271beef6bd29039dc0b

  • SHA256

    99b3e9735871873a79f05ef78dd81435aedc87039ef1b977f5d71ef3bc9c928d

  • SHA512

    32b4b6d3c7128d52321681910c826abadcd15feeae7a60a0680537fe23520f02391131a4ff44b908a9054cca7f44118f0fe1e73c38a76f9db980d00eda7e3294

  • SSDEEP

    3072:vNM0SkXeg4wC2WK8DsIPNitaq2HX5aQ5ASFWOs6XGJSDejSG7BVU1U2WJ1Op3ZUa:WkX3TWZsawa5X5f5ZEHImSGdUWJ1O1ya

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-28_884d69e88b33f7ed2f57ebb85b51b79c_virlock

    • Size

      253KB

    • MD5

      884d69e88b33f7ed2f57ebb85b51b79c

    • SHA1

      50e07dc95ad14a40a51ac271beef6bd29039dc0b

    • SHA256

      99b3e9735871873a79f05ef78dd81435aedc87039ef1b977f5d71ef3bc9c928d

    • SHA512

      32b4b6d3c7128d52321681910c826abadcd15feeae7a60a0680537fe23520f02391131a4ff44b908a9054cca7f44118f0fe1e73c38a76f9db980d00eda7e3294

    • SSDEEP

      3072:vNM0SkXeg4wC2WK8DsIPNitaq2HX5aQ5ASFWOs6XGJSDejSG7BVU1U2WJ1Op3ZUa:WkX3TWZsawa5X5f5ZEHImSGdUWJ1O1ya

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (81) 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