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Overview

overview

10

Static

static

3

2024-03-29...ck.exe

windows7-x64

10

2024-03-29...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-03-29_1344007ea2f0a627c07a6d17e5087920_virlock

  • Size

    255KB

  • Sample

    240329-memgmaff28

  • MD5

    1344007ea2f0a627c07a6d17e5087920

  • SHA1

    cedc30e05bb5ae3ecc2269685b8e575e8cfa62bd

  • SHA256

    eceb7b8309732608aefca70c58ee65ea7d19c255dedcd66ba03c3fd1a05f97fd

  • SHA512

    c06db13d1adeab8ebea8566d5f1357d3e3c5a9c23367c70d870d051efd6d856a98d5198f9dd2e8c3532f70da59dd2faf376ca723607393317780abee40360ee9

  • SSDEEP

    3072:gpc++IxoTnkIITkO4udSV4It014h0ONK/CdQblevozAnz4PLz:g0jnkde4fqh08K/Cd6egAz4H

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-29_1344007ea2f0a627c07a6d17e5087920_virlock

    • Size

      255KB

    • MD5

      1344007ea2f0a627c07a6d17e5087920

    • SHA1

      cedc30e05bb5ae3ecc2269685b8e575e8cfa62bd

    • SHA256

      eceb7b8309732608aefca70c58ee65ea7d19c255dedcd66ba03c3fd1a05f97fd

    • SHA512

      c06db13d1adeab8ebea8566d5f1357d3e3c5a9c23367c70d870d051efd6d856a98d5198f9dd2e8c3532f70da59dd2faf376ca723607393317780abee40360ee9

    • SSDEEP

      3072:gpc++IxoTnkIITkO4udSV4It014h0ONK/CdQblevozAnz4PLz:g0jnkde4fqh08K/Cd6egAz4H

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (83) 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