Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-25_7f7f8daffd0393693e67969ab2723f0c_virlock

  • Size

    117KB

  • Sample

    240425-mpt98ahh99

  • MD5

    7f7f8daffd0393693e67969ab2723f0c

  • SHA1

    ca2c0fcc4d37f0eb37179fcb1acb448da024269c

  • SHA256

    5a0630b5158d1cf91a46ae0ec99ccb8d1983eb3070b7c422bc31a75be9af3940

  • SHA512

    e550dc22ff11820d7a02f8e50cb91afeae3fa0b46669e6a31aa00d3901309faad6d53afad79be9270df50a42e013373d76910d1463b770a09d881bcbb0379dba

  • SSDEEP

    1536:cVpMBh63xyp6UE7e/MUVv+stPTfe8XSJbOfef0fbfufZfvfNf3f/EcQz7q9zmo3q:K2hWyp6UMUh+MbfeYv7qJmQwJwMp5Kq

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_7f7f8daffd0393693e67969ab2723f0c_virlock

    • Size

      117KB

    • MD5

      7f7f8daffd0393693e67969ab2723f0c

    • SHA1

      ca2c0fcc4d37f0eb37179fcb1acb448da024269c

    • SHA256

      5a0630b5158d1cf91a46ae0ec99ccb8d1983eb3070b7c422bc31a75be9af3940

    • SHA512

      e550dc22ff11820d7a02f8e50cb91afeae3fa0b46669e6a31aa00d3901309faad6d53afad79be9270df50a42e013373d76910d1463b770a09d881bcbb0379dba

    • SSDEEP

      1536:cVpMBh63xyp6UE7e/MUVv+stPTfe8XSJbOfef0fbfufZfvfNf3f/EcQz7q9zmo3q:K2hWyp6UMUh+MbfeYv7qJmQwJwMp5Kq

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (82) 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

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks