Overview

overview

10

Static

static

3

2024-04-15...ck.exe

windows7-x64

10

2024-04-15...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-15_8f34460bb8cbb043a2a031a3473c254d_virlock

  • Size

    158KB

  • Sample

    240415-p4w4gahb3s

  • MD5

    8f34460bb8cbb043a2a031a3473c254d

  • SHA1

    ff6c4a24f335def027f7cbe4e46bd837ce5ce406

  • SHA256

    a5bed0bb528139b5ce32df9ba68352b638d1e4a28450a01370c5618ed7802557

  • SHA512

    1f564ba616f07a5144ecb2a3eae0d8a0655e3d03ef1cedc345d6ecdb90811b335bdbccd6a6daebebb7bf5c826ed992d32d473081b28541c833e68f00bf0d87a3

  • SSDEEP

    3072:9DnQrKFAHTkaKvJoUP/NTsYb+uWkbVm53gyq7etH2oV1VYjPouqfmMpF:9bQrKFe6/53bkqKtJjVEPpqeMp

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-15_8f34460bb8cbb043a2a031a3473c254d_virlock

    • Size

      158KB

    • MD5

      8f34460bb8cbb043a2a031a3473c254d

    • SHA1

      ff6c4a24f335def027f7cbe4e46bd837ce5ce406

    • SHA256

      a5bed0bb528139b5ce32df9ba68352b638d1e4a28450a01370c5618ed7802557

    • SHA512

      1f564ba616f07a5144ecb2a3eae0d8a0655e3d03ef1cedc345d6ecdb90811b335bdbccd6a6daebebb7bf5c826ed992d32d473081b28541c833e68f00bf0d87a3

    • SSDEEP

      3072:9DnQrKFAHTkaKvJoUP/NTsYb+uWkbVm53gyq7etH2oV1VYjPouqfmMpF:9bQrKFe6/53bkqKtJjVEPpqeMp

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (84) 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