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Overview

overview

10

Static

static

3

2024-09-07...ck.exe

windows7-x64

10

2024-09-07...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-09-07_e0f553c2dfe03842c9e694108a1764ec_virlock

  • Size

    206KB

  • Sample

    240907-nv5tksseqr

  • MD5

    e0f553c2dfe03842c9e694108a1764ec

  • SHA1

    a42656d4d3e4aa169c847df8a522c9f91edf7886

  • SHA256

    f4b55075c40877a18d983ec2651f0ee290f4dbeaeb77963d1a2c0c1b687a1293

  • SHA512

    857610e165990f75a28450ed4795e95bf1938a93eb7b96e741e5e0e7af410690d6683f4c3fd83110007aa79f9092dc3d8feed5062f142a975f243480ebb47f06

  • SSDEEP

    3072:lB0dtuStHcVIPaUP4YFclhW9NCRg8WUzf+YBcOSbNLO5mvfLYpMGrmXW:lqd3qVIdnCRh7+YlSxhvTYI

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-09-07_e0f553c2dfe03842c9e694108a1764ec_virlock

    • Size

      206KB

    • MD5

      e0f553c2dfe03842c9e694108a1764ec

    • SHA1

      a42656d4d3e4aa169c847df8a522c9f91edf7886

    • SHA256

      f4b55075c40877a18d983ec2651f0ee290f4dbeaeb77963d1a2c0c1b687a1293

    • SHA512

      857610e165990f75a28450ed4795e95bf1938a93eb7b96e741e5e0e7af410690d6683f4c3fd83110007aa79f9092dc3d8feed5062f142a975f243480ebb47f06

    • SSDEEP

      3072:lB0dtuStHcVIPaUP4YFclhW9NCRg8WUzf+YBcOSbNLO5mvfLYpMGrmXW:lqd3qVIdnCRh7+YlSxhvTYI

    Score
    10/10
    discoveryevasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (57) 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

    • 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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks