Overview

overview

10

Static

static

3

2024-05-22...ck.exe

windows7-x64

10

2024-05-22...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-22_aa27aaf186fb1e62d0e99b5a9dacb067_virlock

  • Size

    2.6MB

  • Sample

    240522-w1l8esbh58

  • MD5

    aa27aaf186fb1e62d0e99b5a9dacb067

  • SHA1

    fa2dd7b933fd6f477b179537cc68ce3c82d9dc00

  • SHA256

    275e40786825e7c70dc3469f844dec080e95c0a3de9364213e4dbb11e8e522ab

  • SHA512

    c5d5789caf2f768d3b99731431fb10a9cc89dc4f971555c9177e9fba37239ed3ff2c586fdff69902547bb4fe9d537d6cde67d763eca91862f2aac77f4523690e

  • SSDEEP

    49152:W9Yhpw/vUUPDM9mA67SOa4ZBocVhy24JvmZrzpbcpF6gC:WOhpwkUbYi7SR1Sy2KvmZrip

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-22_aa27aaf186fb1e62d0e99b5a9dacb067_virlock

    • Size

      2.6MB

    • MD5

      aa27aaf186fb1e62d0e99b5a9dacb067

    • SHA1

      fa2dd7b933fd6f477b179537cc68ce3c82d9dc00

    • SHA256

      275e40786825e7c70dc3469f844dec080e95c0a3de9364213e4dbb11e8e522ab

    • SHA512

      c5d5789caf2f768d3b99731431fb10a9cc89dc4f971555c9177e9fba37239ed3ff2c586fdff69902547bb4fe9d537d6cde67d763eca91862f2aac77f4523690e

    • SSDEEP

      49152:W9Yhpw/vUUPDM9mA67SOa4ZBocVhy24JvmZrzpbcpF6gC:WOhpwkUbYi7SR1Sy2KvmZrip

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (88) 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