Overview

overview

10

Static

static

3

2024-08-23...ck.exe

windows7-x64

10

2024-08-23...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-08-23_7282f390606e6fe13a6dc8c26540f8ce_virlock

  • Size

    199KB

  • Sample

    240823-nfmpfstcrn

  • MD5

    7282f390606e6fe13a6dc8c26540f8ce

  • SHA1

    bba81d131740776a63f812a7034f2eb27fbf8479

  • SHA256

    00dd825b460b1c498a167515eb6e6260acf4f4b61e99e037dd608ad2f8a2d87a

  • SHA512

    3c915d0d204e397ebef3634819a268776be4a3f23765d2f1513e0a4c8869a2b03d399e3ca8cfa030fcdee0aabb389605f389690f29fbc9e34fcc4f6152a1ce16

  • SSDEEP

    3072:PN24wpUPQcxoG2ljg0ZL7vKRTqxGgGyZazauMvIBe2GOEKs/xb6GC4a:GpncCG2lZL7vKRiGgGymxMveGzKOb68a

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-08-23_7282f390606e6fe13a6dc8c26540f8ce_virlock

    • Size

      199KB

    • MD5

      7282f390606e6fe13a6dc8c26540f8ce

    • SHA1

      bba81d131740776a63f812a7034f2eb27fbf8479

    • SHA256

      00dd825b460b1c498a167515eb6e6260acf4f4b61e99e037dd608ad2f8a2d87a

    • SHA512

      3c915d0d204e397ebef3634819a268776be4a3f23765d2f1513e0a4c8869a2b03d399e3ca8cfa030fcdee0aabb389605f389690f29fbc9e34fcc4f6152a1ce16

    • SSDEEP

      3072:PN24wpUPQcxoG2ljg0ZL7vKRTqxGgGyZazauMvIBe2GOEKs/xb6GC4a:GpncCG2lZL7vKRiGgGymxMveGzKOb68a

    Score
    10/10
    discoveryevasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (59) 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.

    • 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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks