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_597a02397acd89db31d99a4786ab24f6_virlock

  • Size

    254KB

  • Sample

    240425-xtt55adf5t

  • MD5

    597a02397acd89db31d99a4786ab24f6

  • SHA1

    c956048e026813625f0c84f3f945604db3599579

  • SHA256

    b0e95655d6f8535ed05d981689c120fc4cd71394982eb85dd3834f2ee7a99684

  • SHA512

    9d253c23074efeb600f2bdc3d408567f47bfab2be2b4772a9b8107d44c7a83a226365749f932cff9136519431cd6bbc977db996e14f8732d07c657e8b15d754c

  • SSDEEP

    3072:zHFU793AiHD3ZLf8nwT5CSoDrZBRxhy3wKjeaLBVZHuEqJerl:bu3/j3ZLlT5CSo/ZBRxhcjeGVIp6l

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_597a02397acd89db31d99a4786ab24f6_virlock

    • Size

      254KB

    • MD5

      597a02397acd89db31d99a4786ab24f6

    • SHA1

      c956048e026813625f0c84f3f945604db3599579

    • SHA256

      b0e95655d6f8535ed05d981689c120fc4cd71394982eb85dd3834f2ee7a99684

    • SHA512

      9d253c23074efeb600f2bdc3d408567f47bfab2be2b4772a9b8107d44c7a83a226365749f932cff9136519431cd6bbc977db996e14f8732d07c657e8b15d754c

    • SSDEEP

      3072:zHFU793AiHD3ZLf8nwT5CSoDrZBRxhy3wKjeaLBVZHuEqJerl:bu3/j3ZLlT5CSo/ZBRxhcjeGVIp6l

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (83) 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks