Overview

overview

10

Static

static

3

2024-05-24...ck.exe

windows7-x64

10

2024-05-24...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-24_d4354d416529bb39c8730de5c51bec39_virlock

  • Size

    263KB

  • Sample

    240524-en6mvsce97

  • MD5

    d4354d416529bb39c8730de5c51bec39

  • SHA1

    8ab8a878c0a073bd1b2acda6390ba8002dae722e

  • SHA256

    b587e89c0b10a7b9b7496fa0f83a934cc748db82e7748141299a3c3b848ce96a

  • SHA512

    eaa772953b43a5cf4a206273077deadb4cc19a4258e6b8d8a7ea60a9fd073b4e32f2f8b70ea271ad811252b6a91ad14aaed84c940dfbc85f90e40018e7d06963

  • SSDEEP

    3072:bR3awZfxEKbflUO0mRN1TZq8kFm+b2qlkHetZ/eYZZwbdcBExzmxUaggyVB:HfxEKBUO0mRHZq8am+zwSZ/eYIdzxzv

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_d4354d416529bb39c8730de5c51bec39_virlock

    • Size

      263KB

    • MD5

      d4354d416529bb39c8730de5c51bec39

    • SHA1

      8ab8a878c0a073bd1b2acda6390ba8002dae722e

    • SHA256

      b587e89c0b10a7b9b7496fa0f83a934cc748db82e7748141299a3c3b848ce96a

    • SHA512

      eaa772953b43a5cf4a206273077deadb4cc19a4258e6b8d8a7ea60a9fd073b4e32f2f8b70ea271ad811252b6a91ad14aaed84c940dfbc85f90e40018e7d06963

    • SSDEEP

      3072:bR3awZfxEKbflUO0mRN1TZq8kFm+b2qlkHetZ/eYZZwbdcBExzmxUaggyVB:HfxEKBUO0mRHZq8am+zwSZ/eYIdzxzv

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (65) 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 Matrix ATT&CK v13

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

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks