Overview

overview

10

Static

static

3

2024-05-25...ck.exe

windows7-x64

10

2024-05-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-25_4eb3211d423f17958696b1663b1a536b_virlock

  • Size

    644KB

  • Sample

    240525-hb9ershe42

  • MD5

    4eb3211d423f17958696b1663b1a536b

  • SHA1

    9bfc387515822d3cb8f96bb2c5822bb5d9c92e11

  • SHA256

    ada5cf5952337e6d1933afd4c00b655d7cb7b4ac98e3353baef5b90123ebfc0f

  • SHA512

    b048d4308d1f7d8877bceeb6776572de4e686c09122d350b4d56028ed55681f7a5c11d9b4f7e0434abf1867592bee3720215b360c44dc6e8290269c63e1e32d7

  • SSDEEP

    12288:GWTFzgLByo3IS+idISfZMYBpm6+q5LdFHxj9O8edVB91RybSyl7SzFbZtr1fQGC6:GWTFwEidIOZMYBpe+J8TVB91RybSyl7E

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_4eb3211d423f17958696b1663b1a536b_virlock

    • Size

      644KB

    • MD5

      4eb3211d423f17958696b1663b1a536b

    • SHA1

      9bfc387515822d3cb8f96bb2c5822bb5d9c92e11

    • SHA256

      ada5cf5952337e6d1933afd4c00b655d7cb7b4ac98e3353baef5b90123ebfc0f

    • SHA512

      b048d4308d1f7d8877bceeb6776572de4e686c09122d350b4d56028ed55681f7a5c11d9b4f7e0434abf1867592bee3720215b360c44dc6e8290269c63e1e32d7

    • SSDEEP

      12288:GWTFzgLByo3IS+idISfZMYBpm6+q5LdFHxj9O8edVB91RybSyl7SzFbZtr1fQGC6:GWTFwEidIOZMYBpe+J8TVB91RybSyl7E

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (74) 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 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