Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-28_68671bda5a8af1e69521590614c39b61_virlock

  • Size

    186KB

  • Sample

    240428-pte27sgc9t

  • MD5

    68671bda5a8af1e69521590614c39b61

  • SHA1

    ee94523f75c634471eeb8481a5c0db64d27b18fa

  • SHA256

    f3be1b2fa58fca1e478d18c992d3261566350f392bdd813eaa63f8265304e4c7

  • SHA512

    47f7c6ebee835c06aa324a66bf740fb77b4d7a040d4cbc9a8ec916e1f9b01cdfc5f463943546bbb6f46285d73bfadee901912ca1302d02a0a0d7d55ea50abf5e

  • SSDEEP

    3072:gRQcGe0ul4OJ2mzmlTGtas1Q1XPNQGKNl0XWq4/eU5XbM3cOpzs6l2+wRm4fkuZt:gRYe0Wx2Emlatas1Q1XPNQGKNl0XWq49

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_68671bda5a8af1e69521590614c39b61_virlock

    • Size

      186KB

    • MD5

      68671bda5a8af1e69521590614c39b61

    • SHA1

      ee94523f75c634471eeb8481a5c0db64d27b18fa

    • SHA256

      f3be1b2fa58fca1e478d18c992d3261566350f392bdd813eaa63f8265304e4c7

    • SHA512

      47f7c6ebee835c06aa324a66bf740fb77b4d7a040d4cbc9a8ec916e1f9b01cdfc5f463943546bbb6f46285d73bfadee901912ca1302d02a0a0d7d55ea50abf5e

    • SSDEEP

      3072:gRQcGe0ul4OJ2mzmlTGtas1Q1XPNQGKNl0XWq4/eU5XbM3cOpzs6l2+wRm4fkuZt:gRYe0Wx2Emlatas1Q1XPNQGKNl0XWq49

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (63) 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
    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