Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-28_71c8c978cd82f76ad18023581e3f1218_virlock

  • Size

    249KB

  • Sample

    240428-edjeksfg6y

  • MD5

    71c8c978cd82f76ad18023581e3f1218

  • SHA1

    8ef6e1ff4bbe3794322a487b56de9587b9bf04bf

  • SHA256

    2a9614d62542a5d0689d1c89dcc4e5b4d7c41926d98ebae9548d2aacb8b85e23

  • SHA512

    cb41475817da71009375f8237f95bb3eb2363aaf0e4bde2837cc29fe613a47b43fe2c921794df88db5a59c5d188a757863c4887991a84298ffbc47d4f4f1be5b

  • SSDEEP

    3072:p9icqwC+TJMSk9b5tQsiOdveWxketVSZU4z23yxVNmpkgyULCVaJ:p97C+cZQsiOhPxkerqU4z+ykpaUCY

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_71c8c978cd82f76ad18023581e3f1218_virlock

    • Size

      249KB

    • MD5

      71c8c978cd82f76ad18023581e3f1218

    • SHA1

      8ef6e1ff4bbe3794322a487b56de9587b9bf04bf

    • SHA256

      2a9614d62542a5d0689d1c89dcc4e5b4d7c41926d98ebae9548d2aacb8b85e23

    • SHA512

      cb41475817da71009375f8237f95bb3eb2363aaf0e4bde2837cc29fe613a47b43fe2c921794df88db5a59c5d188a757863c4887991a84298ffbc47d4f4f1be5b

    • SSDEEP

      3072:p9icqwC+TJMSk9b5tQsiOdveWxketVSZU4z23yxVNmpkgyULCVaJ:p97C+cZQsiOhPxkerqU4z+ykpaUCY

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (71) 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 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