Overview

overview

10

Static

static

3

2024-05-23...ck.exe

windows7-x64

10

2024-05-23...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-23_74b1775c2f939faf645592a07ae40238_virlock

  • Size

    276KB

  • Sample

    240523-jr4d5aab2z

  • MD5

    74b1775c2f939faf645592a07ae40238

  • SHA1

    6508de8014933d492da53f86cc1dfb5985747715

  • SHA256

    df6c59166b0a316b2a4c9d8a88f6db2d13ed5b4eae47da77f980c00b3636ca8d

  • SHA512

    cccab3bdb8c96a4598302cdd8c58d41c34fac2c22833f949a0bf408cd81077f84d6b442b6c9379fad581605b60ab15e26f950b9fe72ea206a53baf07e6d780ca

  • SSDEEP

    6144:4HPnOrggx8WB7vYCCF5l4f8hgNozgXGWuSE68Qf0HgY+3ASP8kjuCd3Cd:WPnygU8WBHCF5l4iaodWuSZ10AUSElgW

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-23_74b1775c2f939faf645592a07ae40238_virlock

    • Size

      276KB

    • MD5

      74b1775c2f939faf645592a07ae40238

    • SHA1

      6508de8014933d492da53f86cc1dfb5985747715

    • SHA256

      df6c59166b0a316b2a4c9d8a88f6db2d13ed5b4eae47da77f980c00b3636ca8d

    • SHA512

      cccab3bdb8c96a4598302cdd8c58d41c34fac2c22833f949a0bf408cd81077f84d6b442b6c9379fad581605b60ab15e26f950b9fe72ea206a53baf07e6d780ca

    • SSDEEP

      6144:4HPnOrggx8WB7vYCCF5l4f8hgNozgXGWuSE68Qf0HgY+3ASP8kjuCd3Cd:WPnygU8WBHCF5l4iaodWuSZ10AUSElgW

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (53) 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