Overview

overview

10

Static

static

3

2024-04-26...ck.exe

windows7-x64

10

2024-04-26...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-26_b9b6f0022d087e8a58b165d4205b8a77_virlock

  • Size

    286KB

  • Sample

    240426-eltwaahg66

  • MD5

    b9b6f0022d087e8a58b165d4205b8a77

  • SHA1

    0f131aed96ffb2aa4f294eb07741ee7d168d1375

  • SHA256

    45abe78e87a29f59ed600e853a2672bc32c9ac015e1c5bfa80099cb32cdad01c

  • SHA512

    9141b161ed1e8cc1b95c97e09baccbff347bd22622e0ff6fd4c8a1efe42046c27b44b5ccf22d8120ef466baa96210805dc610ddcad50d0abb8b41dfaf43f42a8

  • SSDEEP

    6144:3pBIDBdNgtRZB1kN5QjXYvoR8KYEcazrk0B:iBdNgtRZs/eXYvE8xazrk0B

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-26_b9b6f0022d087e8a58b165d4205b8a77_virlock

    • Size

      286KB

    • MD5

      b9b6f0022d087e8a58b165d4205b8a77

    • SHA1

      0f131aed96ffb2aa4f294eb07741ee7d168d1375

    • SHA256

      45abe78e87a29f59ed600e853a2672bc32c9ac015e1c5bfa80099cb32cdad01c

    • SHA512

      9141b161ed1e8cc1b95c97e09baccbff347bd22622e0ff6fd4c8a1efe42046c27b44b5ccf22d8120ef466baa96210805dc610ddcad50d0abb8b41dfaf43f42a8

    • SSDEEP

      6144:3pBIDBdNgtRZB1kN5QjXYvoR8KYEcazrk0B:iBdNgtRZs/eXYvE8xazrk0B

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (81) 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