Overview

overview

10

Static

static

3

2024-04-27...ck.exe

windows7-x64

10

2024-04-27...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-27_54d7c3e6f830f0fa0a21049aeb480172_virlock

  • Size

    319KB

  • Sample

    240427-dz2bvaaa47

  • MD5

    54d7c3e6f830f0fa0a21049aeb480172

  • SHA1

    62af4c71b14e0188679bca5ad61605c7509d3852

  • SHA256

    e0048ca5841e2bcb132c2e1fb4cc124d1447917a61a35e31212b3c6d0bc08bdb

  • SHA512

    2d4fdd3d61f179158dbe71ac2ed5b061f143bb1de4ce4eac4fe8f07d387bf3c4014b6b3c594693e9831557aacdadff66567c66f694cfee089f3c4193ab1706e7

  • SSDEEP

    6144:qW6nBHt2Dkp1UiTnOaVDUMaYYZYwicEOwy4DnqRh1GqhRtw:q1nBH5p1U0nlDUMvodVEOwy4DqR31D

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-27_54d7c3e6f830f0fa0a21049aeb480172_virlock

    • Size

      319KB

    • MD5

      54d7c3e6f830f0fa0a21049aeb480172

    • SHA1

      62af4c71b14e0188679bca5ad61605c7509d3852

    • SHA256

      e0048ca5841e2bcb132c2e1fb4cc124d1447917a61a35e31212b3c6d0bc08bdb

    • SHA512

      2d4fdd3d61f179158dbe71ac2ed5b061f143bb1de4ce4eac4fe8f07d387bf3c4014b6b3c594693e9831557aacdadff66567c66f694cfee089f3c4193ab1706e7

    • SSDEEP

      6144:qW6nBHt2Dkp1UiTnOaVDUMaYYZYwicEOwy4DnqRh1GqhRtw:q1nBH5p1U0nlDUMvodVEOwy4DqR31D

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (65) 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