Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-25_26f16e7e09ce4f1c6ba337c2d108d986_virlock

  • Size

    242KB

  • Sample

    240425-zlrq5see7v

  • MD5

    26f16e7e09ce4f1c6ba337c2d108d986

  • SHA1

    471e58b99ad5c8911a23e4f266ce4fd6d06e8678

  • SHA256

    cc80beb3dd128d2e9f4dbccf75b2308054ac60ecb78efb172ad9cfee9a532f2a

  • SHA512

    b950cec6262db190b327407f08a7b83f388dade9a0829ff7b69c20d3ed80711683684b7693c515c07e04250ec859aa3c291b3166e8b23dd31ea5c4c7be1febe9

  • SSDEEP

    6144:TCWf6JNNj85WjWGqEOADxcyd4dRHyiUfVlK2:V6jNvWQHyydO9yiUNr

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_26f16e7e09ce4f1c6ba337c2d108d986_virlock

    • Size

      242KB

    • MD5

      26f16e7e09ce4f1c6ba337c2d108d986

    • SHA1

      471e58b99ad5c8911a23e4f266ce4fd6d06e8678

    • SHA256

      cc80beb3dd128d2e9f4dbccf75b2308054ac60ecb78efb172ad9cfee9a532f2a

    • SHA512

      b950cec6262db190b327407f08a7b83f388dade9a0829ff7b69c20d3ed80711683684b7693c515c07e04250ec859aa3c291b3166e8b23dd31ea5c4c7be1febe9

    • SSDEEP

      6144:TCWf6JNNj85WjWGqEOADxcyd4dRHyiUfVlK2:V6jNvWQHyydO9yiUNr

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (55) 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

    • 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