Overview

overview

10

Static

static

chthonic_2...ir.exe

windows7_x64

chthonic_2...ir.exe

windows10_x64

Sharing

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General

  • Target

    chthonic_2.23.17.1.vir

  • Size

    151KB

  • Sample

    200719-lp75ts4alx

  • MD5

    aba6f9b372254cf34879ddc5283927c9

  • SHA1

    f5724a63620621be8930972897da28c088547706

  • SHA256

    3ba80718b5c68cf563db5bcda51606472b0b1e7bd52f9698383068cb935aad99

  • SHA512

    a27be560684162fa3b315c6f7e90435c2e76a35a16e4e004d304d8569c4f22e56fa8711e12ea170e99592ba5f8715a2e26455bf7bc800d85e4aa7e96c87b9ede

Score
10/10
bootkitevasionpersistenceransomwaretrojan

Malware Config

Targets

    • Target

      chthonic_2.23.17.1.vir

    • Size

      151KB

    • MD5

      aba6f9b372254cf34879ddc5283927c9

    • SHA1

      f5724a63620621be8930972897da28c088547706

    • SHA256

      3ba80718b5c68cf563db5bcda51606472b0b1e7bd52f9698383068cb935aad99

    • SHA512

      a27be560684162fa3b315c6f7e90435c2e76a35a16e4e004d304d8569c4f22e56fa8711e12ea170e99592ba5f8715a2e26455bf7bc800d85e4aa7e96c87b9ede

    Score
    10/10
    evasiontrojanpersistenceransomwarebootkit

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Disables taskbar notifications via registry modification

      evasion

    • Executes dropped EXE

    • Modifies WinLogon to allow AutoLogon

      Enables rebooting of the machine without requiring login credentials.

      ransomwarebootkit

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks for any installed AV software in registry

    • Checks whether UAC is enabled

      evasiontrojan

    • Modifies service

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

2
T1031

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

1
T1089

Credential Access

Discovery

Security Software Discovery

1
T1063

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks