Overview

overview

10

Static

static

3

2024-05-24...ck.exe

windows7-x64

10

2024-05-24...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-24_c5ade1249b697bff9f1669273d995126_virlock

  • Size

    781KB

  • Sample

    240524-lln4cscg95

  • MD5

    c5ade1249b697bff9f1669273d995126

  • SHA1

    4c86e0a00650749fd7f3fc87e833cac3f02c3099

  • SHA256

    f0ffe1a5c10bdc63291948ef46993f315e3fb1d91d36e51bf122f912cfa9194f

  • SHA512

    5e9449a23c053c98733f9acf1e81bc37c3672fd5c5f59f154991d5f30640ffd567d8b8c3c269da9cdfc7757732b48305198e4396839a67dc177a7e7a766d6e0c

  • SSDEEP

    3072:1PsNcZ5+daJPOomc2Umo9dc6bgwuvFG4Xibytnz9kHjMWJwFLF1J3m:tOcHsa4fP1gH6fimBJcR0pm

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_c5ade1249b697bff9f1669273d995126_virlock

    • Size

      781KB

    • MD5

      c5ade1249b697bff9f1669273d995126

    • SHA1

      4c86e0a00650749fd7f3fc87e833cac3f02c3099

    • SHA256

      f0ffe1a5c10bdc63291948ef46993f315e3fb1d91d36e51bf122f912cfa9194f

    • SHA512

      5e9449a23c053c98733f9acf1e81bc37c3672fd5c5f59f154991d5f30640ffd567d8b8c3c269da9cdfc7757732b48305198e4396839a67dc177a7e7a766d6e0c

    • SSDEEP

      3072:1PsNcZ5+daJPOomc2Umo9dc6bgwuvFG4Xibytnz9kHjMWJwFLF1J3m:tOcHsa4fP1gH6fimBJcR0pm

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (60) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Blocklisted process makes network request

    • 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

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks