Overview

overview

10

Static

static

3

2024-03-05...ck.exe

windows7-x64

10

2024-03-05...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-05_86637b28f821720ea31a15741d3aa558_virlock

  • Size

    593KB

  • Sample

    240305-gmylzaga4s

  • MD5

    86637b28f821720ea31a15741d3aa558

  • SHA1

    017ebad031475eec94a5f9d7c6752d2d6093ae67

  • SHA256

    0fc31d05cfdbde9e1f2ab4800a4940afce0ff0e2da7e8c0cc6f60bcf4309fffb

  • SHA512

    76aebde208c8abd9fecf67743e5620c30a6fcb724d54842bb96f440581cf32a1477e5502b416cc9143df674c51fc791c4a1aa29972b9acbf77644735ef66a62a

  • SSDEEP

    12288:gtb/FGAzaGO2tlM7s8czJYBmG5129GHOJRhh6gHmnx:OzaGO20PBmA12MoRhh0x

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-05_86637b28f821720ea31a15741d3aa558_virlock

    • Size

      593KB

    • MD5

      86637b28f821720ea31a15741d3aa558

    • SHA1

      017ebad031475eec94a5f9d7c6752d2d6093ae67

    • SHA256

      0fc31d05cfdbde9e1f2ab4800a4940afce0ff0e2da7e8c0cc6f60bcf4309fffb

    • SHA512

      76aebde208c8abd9fecf67743e5620c30a6fcb724d54842bb96f440581cf32a1477e5502b416cc9143df674c51fc791c4a1aa29972b9acbf77644735ef66a62a

    • SSDEEP

      12288:gtb/FGAzaGO2tlM7s8czJYBmG5129GHOJRhh6gHmnx:OzaGO20PBmA12MoRhh0x

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (78) 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