Overview

overview

10

Static

static

3

2024-05-25...ck.exe

windows7-x64

10

2024-05-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-25_5ef48f63127987a1df52d23c840bea4a_virlock

  • Size

    205KB

  • Sample

    240525-pmpm3aah7v

  • MD5

    5ef48f63127987a1df52d23c840bea4a

  • SHA1

    2d5073bf30bff3737ad6693fae369a52830e34d1

  • SHA256

    9514d108766f1afd9f48bad55acde065e566d02b0ce97ed5366aa1678e328fdb

  • SHA512

    a6684415e6b2322acddef1bb0f03c6829a29baff04fedf65ca83cd87521292d666e3969441fe57718fd2350ac1788ac611be67f9e7615bd2d9dbbb8040514985

  • SSDEEP

    3072:8X9VAOolOJdYht/RoY64iQDy7cvL3TV06zi/q8ej1wN/jMo+As0164PttTs/wT:8X9CCIt/yl43y7i3TmeO4oI0EOWw

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_5ef48f63127987a1df52d23c840bea4a_virlock

    • Size

      205KB

    • MD5

      5ef48f63127987a1df52d23c840bea4a

    • SHA1

      2d5073bf30bff3737ad6693fae369a52830e34d1

    • SHA256

      9514d108766f1afd9f48bad55acde065e566d02b0ce97ed5366aa1678e328fdb

    • SHA512

      a6684415e6b2322acddef1bb0f03c6829a29baff04fedf65ca83cd87521292d666e3969441fe57718fd2350ac1788ac611be67f9e7615bd2d9dbbb8040514985

    • SSDEEP

      3072:8X9VAOolOJdYht/RoY64iQDy7cvL3TV06zi/q8ej1wN/jMo+As0164PttTs/wT:8X9CCIt/yl43y7i3TmeO4oI0EOWw

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (66) 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