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_3b750821a248aac35c7a4ed4eab8cc8a_virlock

  • Size

    302KB

  • Sample

    240525-hal8vahd6t

  • MD5

    3b750821a248aac35c7a4ed4eab8cc8a

  • SHA1

    4299387849a5a4ad7009562c5e193e5fe7f526bc

  • SHA256

    1a1ae747f90aa21c3ed81ebfbbc0a65825087e9ec32e79b047c9abacd546685a

  • SHA512

    f920a398f7255bd48e3bba9191295dcbeccd1911e4f92aa0a0d54d0cd9eff4b0515720c855980e2fbbbde2c4d98cbecb6e3b3a0a8ffc0a1baf35af6ed6eeb8f0

  • SSDEEP

    6144:6LcNujwEXA+t/X03S4B2ysziQ3P3RtYDY6rMXoaaxmmvaKtpaOLqpgGDjNh:uEkVp8RB2yEwooaaJaxNh

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_3b750821a248aac35c7a4ed4eab8cc8a_virlock

    • Size

      302KB

    • MD5

      3b750821a248aac35c7a4ed4eab8cc8a

    • SHA1

      4299387849a5a4ad7009562c5e193e5fe7f526bc

    • SHA256

      1a1ae747f90aa21c3ed81ebfbbc0a65825087e9ec32e79b047c9abacd546685a

    • SHA512

      f920a398f7255bd48e3bba9191295dcbeccd1911e4f92aa0a0d54d0cd9eff4b0515720c855980e2fbbbde2c4d98cbecb6e3b3a0a8ffc0a1baf35af6ed6eeb8f0

    • SSDEEP

      6144:6LcNujwEXA+t/X03S4B2ysziQ3P3RtYDY6rMXoaaxmmvaKtpaOLqpgGDjNh:uEkVp8RB2yEwooaaJaxNh

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (52) 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