Overview

overview

10

Static

static

v4vcmk.exe

windows7_x64

10

v4vcmk.exe

windows10-2004_x64

10

Resubmissions

28-03-2023 12:54

230328-p5kf3abb35 10

10-02-2022 06:54

220210-hn9lasfgel 10

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General

  • Target

    v4vcmk.exe

  • Size

    235KB

  • Sample

    220210-hn9lasfgel

  • MD5

    e7a30a6b98068f2c28af36b58c314c6a

  • SHA1

    4a366530e40c4ba0f6df97c8ebce2429aea6cc35

  • SHA256

    fa5e38ff3f546827c5e62db27f12d68bcc4cb30285a329088c54995b2e4ec5d0

  • SHA512

    8e8bff9a8c1976ca5724a8eaec77b81f7d057311021845aa3f72a6573bf25b189e715af3902fef76079e3dd2dcc6cf7ed513f9f8df9cf60c1e23439c990b33e6

Score
10/10
evasionpersistencespywarestealertrojan

Malware Config

Targets

    • Target

      v4vcmk.exe

    • Size

      235KB

    • MD5

      e7a30a6b98068f2c28af36b58c314c6a

    • SHA1

      4a366530e40c4ba0f6df97c8ebce2429aea6cc35

    • SHA256

      fa5e38ff3f546827c5e62db27f12d68bcc4cb30285a329088c54995b2e4ec5d0

    • SHA512

      8e8bff9a8c1976ca5724a8eaec77b81f7d057311021845aa3f72a6573bf25b189e715af3902fef76079e3dd2dcc6cf7ed513f9f8df9cf60c1e23439c990b33e6

    Score
    10/10
    evasionpersistencespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • UAC bypass

      evasiontrojan

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • 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

    • Checks whether UAC is enabled

      evasiontrojan
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

5
T1112

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks