Overview

overview

10

Static

static

3

2024-03-07...ck.exe

windows7-x64

10

2024-03-07...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-07_21c6668b742da8f37daf73c866438c25_virlock

  • Size

    117KB

  • Sample

    240307-w2b4vaad34

  • MD5

    21c6668b742da8f37daf73c866438c25

  • SHA1

    8791036b5376a0e00fbfadf8ff6cbb2f7c890cb3

  • SHA256

    4a69753b4a4f7aaedf6398a20ee08d6f31c1f71933ee96aca671bc2711cf0a4c

  • SHA512

    3c68be2afbc04c460c4b137fe35ec18c1f75748ac8c261724f6e5996779fb00a5c5565eaaa83fe0e87687aa618b49988f37b7c03299bfce6f7647a28bb70a251

  • SSDEEP

    1536:2HBb8I2gqPCwyj6G3XrWcTu1uZsHkxAvn5sCX4l+kZjGW8GWjI+IxgwWeGVuprg:cBYhEOGnrMMGEe/iPlHKGsIlCwgupt1

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-07_21c6668b742da8f37daf73c866438c25_virlock

    • Size

      117KB

    • MD5

      21c6668b742da8f37daf73c866438c25

    • SHA1

      8791036b5376a0e00fbfadf8ff6cbb2f7c890cb3

    • SHA256

      4a69753b4a4f7aaedf6398a20ee08d6f31c1f71933ee96aca671bc2711cf0a4c

    • SHA512

      3c68be2afbc04c460c4b137fe35ec18c1f75748ac8c261724f6e5996779fb00a5c5565eaaa83fe0e87687aa618b49988f37b7c03299bfce6f7647a28bb70a251

    • SSDEEP

      1536:2HBb8I2gqPCwyj6G3XrWcTu1uZsHkxAvn5sCX4l+kZjGW8GWjI+IxgwWeGVuprg:cBYhEOGnrMMGEe/iPlHKGsIlCwgupt1

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (91) 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