Overview

overview

10

Static

static

3

2024-04-05...ck.exe

windows7-x64

10

2024-04-05...ck.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    2024-04-05_655c4e0d2a32c9c40f806582f15656d0_virlock

  • Size

    138KB

  • Sample

    240405-zddjjsdd32

  • MD5

    655c4e0d2a32c9c40f806582f15656d0

  • SHA1

    55424c2985c89cdb88ea6f09f414c87469fe79f7

  • SHA256

    f09a47c590aa6ac6b40d660400b9862fd3f07f1c89c8c5d8273d3acb58f884e2

  • SHA512

    9ec1c398d47e950edaaf2866d771f5c02462717da42cb4429af1ca7f293d1ab7515c0bcd1e931d9e783a4764f03f7d60628269a4ac957779a5095ac7f6d220e2

  • SSDEEP

    3072:LUSHc06BxtaO/SdRwG1LbTb9iUyE3AzG8LrBrC+0UuSaydVq:LRP6kOqRwiRiwA6OrcNoay

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-05_655c4e0d2a32c9c40f806582f15656d0_virlock

    • Size

      138KB

    • MD5

      655c4e0d2a32c9c40f806582f15656d0

    • SHA1

      55424c2985c89cdb88ea6f09f414c87469fe79f7

    • SHA256

      f09a47c590aa6ac6b40d660400b9862fd3f07f1c89c8c5d8273d3acb58f884e2

    • SHA512

      9ec1c398d47e950edaaf2866d771f5c02462717da42cb4429af1ca7f293d1ab7515c0bcd1e931d9e783a4764f03f7d60628269a4ac957779a5095ac7f6d220e2

    • SSDEEP

      3072:LUSHc06BxtaO/SdRwG1LbTb9iUyE3AzG8LrBrC+0UuSaydVq:LRP6kOqRwiRiwA6OrcNoay

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (84) 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

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks