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_90e636af28c7f8261c6581ade3ff8dd7_virlock

  • Size

    567KB

  • Sample

    240428-pxjjssga45

  • MD5

    90e636af28c7f8261c6581ade3ff8dd7

  • SHA1

    187557f72a91f9ba97bbfd147f360c6dfd4aee4b

  • SHA256

    2884f639139b1fefbff78192ddb28af0169fd02156e7753afee454aff37b2b32

  • SHA512

    25c8ec5fb37247fc56a8ad0a25cddd2a9250421741a44f9841d99b4f1d0aa53c1bd429926fe47cfe6d938ad47b4b6a45d62f4163ee17bbbac888d78872b87e49

  • SSDEEP

    12288:YA471GmBpNGc4PQqiTfQ0ZCLzJFtDvvA1IZ5EdKg:n47cmBrGPP+TfQ0gLtnDv41IFg

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_90e636af28c7f8261c6581ade3ff8dd7_virlock

    • Size

      567KB

    • MD5

      90e636af28c7f8261c6581ade3ff8dd7

    • SHA1

      187557f72a91f9ba97bbfd147f360c6dfd4aee4b

    • SHA256

      2884f639139b1fefbff78192ddb28af0169fd02156e7753afee454aff37b2b32

    • SHA512

      25c8ec5fb37247fc56a8ad0a25cddd2a9250421741a44f9841d99b4f1d0aa53c1bd429926fe47cfe6d938ad47b4b6a45d62f4163ee17bbbac888d78872b87e49

    • SSDEEP

      12288:YA471GmBpNGc4PQqiTfQ0ZCLzJFtDvvA1IZ5EdKg:n47cmBrGPP+TfQ0gLtnDv41IFg

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (80) 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