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Overview

overview

10

Static

static

3

2024-04-20...ck.exe

windows7-x64

10

2024-04-20...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-20_c4b12d6d252e7d8e80def67a5c5be6c2_virlock

  • Size

    119KB

  • Sample

    240420-qbyx2aaa6z

  • MD5

    c4b12d6d252e7d8e80def67a5c5be6c2

  • SHA1

    714ec9aaac0ed256d0c29600f79173ad55c06dd0

  • SHA256

    2d0503d20df5af79bb1e7261bffb64cca948a8de126f81297bc2e7c049771700

  • SHA512

    16266aa6a4dfe75b870f593cf9f4225fb9bd02eda2b39d7929ff10639750c23a2c702b65443eb7adc5897e28099468c6301e97c335f2f31cdfc88b48247f131f

  • SSDEEP

    3072:bL4NM2pXr5YYdb7EuA+GJSGKczBJ3uybseLVjCMJ:b2+Y1EuA+GJZ9zuWseLVZJ

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-20_c4b12d6d252e7d8e80def67a5c5be6c2_virlock

    • Size

      119KB

    • MD5

      c4b12d6d252e7d8e80def67a5c5be6c2

    • SHA1

      714ec9aaac0ed256d0c29600f79173ad55c06dd0

    • SHA256

      2d0503d20df5af79bb1e7261bffb64cca948a8de126f81297bc2e7c049771700

    • SHA512

      16266aa6a4dfe75b870f593cf9f4225fb9bd02eda2b39d7929ff10639750c23a2c702b65443eb7adc5897e28099468c6301e97c335f2f31cdfc88b48247f131f

    • SSDEEP

      3072:bL4NM2pXr5YYdb7EuA+GJSGKczBJ3uybseLVjCMJ:b2+Y1EuA+GJZ9zuWseLVZJ

    Score
    10/10
    evasionpersistencetrojanransomwarespywarestealer

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (87) 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
    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