Overview

overview

10

Static

static

3

2024-02-24...ck.exe

windows7-x64

10

2024-02-24...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-02-24_748dd527162b8e952b7775e8494ec7dc_virlock

  • Size

    115KB

  • Sample

    240224-t8as9ahe2t

  • MD5

    748dd527162b8e952b7775e8494ec7dc

  • SHA1

    5991936b342f54520aa79f305d82a2362dda1c73

  • SHA256

    57b6ac240009a6ea557a0163a2fe26cc630560899f941c51a57391d0333de29d

  • SHA512

    72ed711715217ad0f9ffa8cbc3294fe9f95129a2973d949ab5407f162eb956aaee95e2d07515e9cc97a1a3acf50d7a66b8c413acf113080642012004e4b4d56a

  • SSDEEP

    1536:MQjk+blKl6tN4Ym29G2MPvkGoGJ1Ej3OSO+ldZmitqxMIIDZTy9SH0nYsNEe3BoN:nwqBtNIoGJ12cgakiYsSe3BoHt

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-24_748dd527162b8e952b7775e8494ec7dc_virlock

    • Size

      115KB

    • MD5

      748dd527162b8e952b7775e8494ec7dc

    • SHA1

      5991936b342f54520aa79f305d82a2362dda1c73

    • SHA256

      57b6ac240009a6ea557a0163a2fe26cc630560899f941c51a57391d0333de29d

    • SHA512

      72ed711715217ad0f9ffa8cbc3294fe9f95129a2973d949ab5407f162eb956aaee95e2d07515e9cc97a1a3acf50d7a66b8c413acf113080642012004e4b4d56a

    • SSDEEP

      1536:MQjk+blKl6tN4Ym29G2MPvkGoGJ1Ej3OSO+ldZmitqxMIIDZTy9SH0nYsNEe3BoN:nwqBtNIoGJ12cgakiYsSe3BoHt

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (85) 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

    • Checks whether UAC is enabled

      evasiontrojan

    • 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

5
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks