Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-25_c055414e00cb301e35740f3591df4ea4_virlock

  • Size

    131KB

  • Sample

    240425-rtatlabf63

  • MD5

    c055414e00cb301e35740f3591df4ea4

  • SHA1

    e221f5b1ac929c2c04a1fb9e27c6e43d030a0fbb

  • SHA256

    e270915d93536de8953dcf4001c4aa95e9b3c3ead079dbde425d65e1f7237efa

  • SHA512

    b7be9688a8d6ffa02b67948d4b5b2749396e26a2893ff736ea707c10ad15d8a0314b9d3dfcb1383e50e33c3d82f2e4f72afba2d6e1a3f4ec6e087ac02241ac12

  • SSDEEP

    3072:1uxMFsg7SYqAnWAu95iwtLVymzq1MOggzR557/PTShlllllllYPA7Ra3Z:5lSYup9nLomzq1MOggzNPT7PKa3

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_c055414e00cb301e35740f3591df4ea4_virlock

    • Size

      131KB

    • MD5

      c055414e00cb301e35740f3591df4ea4

    • SHA1

      e221f5b1ac929c2c04a1fb9e27c6e43d030a0fbb

    • SHA256

      e270915d93536de8953dcf4001c4aa95e9b3c3ead079dbde425d65e1f7237efa

    • SHA512

      b7be9688a8d6ffa02b67948d4b5b2749396e26a2893ff736ea707c10ad15d8a0314b9d3dfcb1383e50e33c3d82f2e4f72afba2d6e1a3f4ec6e087ac02241ac12

    • SSDEEP

      3072:1uxMFsg7SYqAnWAu95iwtLVymzq1MOggzR557/PTShlllllllYPA7Ra3Z:5lSYup9nLomzq1MOggzNPT7PKa3

    Score
    10/10
    evasionpersistencetrojanransomwarespywarestealer

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (59) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Blocklisted process makes network request

    • 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

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks