Overview

overview

10

Static

static

3

2024-06-30...ck.exe

windows7-x64

10

2024-06-30...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-06-30_8b220c0e5f1f5d46e8e50d8b119bf5be_virlock

  • Size

    118KB

  • Sample

    240630-nvg3hsxcje

  • MD5

    8b220c0e5f1f5d46e8e50d8b119bf5be

  • SHA1

    590f1badf04e1901741bb1b1d6bde30244d7e4d0

  • SHA256

    b2bfd21c5548445421f3ca4397344973db4409bca631e39b3381979f15cc3e18

  • SHA512

    65104554245f582302ea2faa487721b9afc71354bf69aeff2447a0acc42a01c4e392758db1dc95c54c35fe95ac114d1fe16ec087963602175387a35b5ec80460

  • SSDEEP

    3072:d3jOnIJA7GXsUPLCxmINa77uoCPxz06letkdWrbQoT+2zyXSluj:VjOnIO7GXsWeTNpoCPxz06topyXSEj

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-06-30_8b220c0e5f1f5d46e8e50d8b119bf5be_virlock

    • Size

      118KB

    • MD5

      8b220c0e5f1f5d46e8e50d8b119bf5be

    • SHA1

      590f1badf04e1901741bb1b1d6bde30244d7e4d0

    • SHA256

      b2bfd21c5548445421f3ca4397344973db4409bca631e39b3381979f15cc3e18

    • SHA512

      65104554245f582302ea2faa487721b9afc71354bf69aeff2447a0acc42a01c4e392758db1dc95c54c35fe95ac114d1fe16ec087963602175387a35b5ec80460

    • SSDEEP

      3072:d3jOnIJA7GXsUPLCxmINa77uoCPxz06letkdWrbQoT+2zyXSluj:VjOnIO7GXsWeTNpoCPxz06topyXSEj

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (70) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • 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