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_2.23.17.5.vir

  • Size

    120KB

  • Sample

    200719-be3mte5eq2

  • MD5

    20634b0d4225cd3d911daf828cb6aa39

  • SHA1

    d396236df73c7d15cf910d6ce3ff4bb75d7e1ebe

  • SHA256

    35396cd9c37aef5c360393e391bbb2acb4956c948e2d061705728002edc068c1

  • SHA512

    5485eea7b0b1f97c3384607c84e71a6a795653f5d802c8269c134a8f4596f5971334893282ade9e8e5f4765b8919793f74147155595ef27b24b7d7d371898668

Score
10/10
bootkitevasionpersistenceransomwaretrojan

Malware Config

Targets

    • Target

      chthonic_2.23.17.5.vir

    • Size

      120KB

    • MD5

      20634b0d4225cd3d911daf828cb6aa39

    • SHA1

      d396236df73c7d15cf910d6ce3ff4bb75d7e1ebe

    • SHA256

      35396cd9c37aef5c360393e391bbb2acb4956c948e2d061705728002edc068c1

    • SHA512

      5485eea7b0b1f97c3384607c84e71a6a795653f5d802c8269c134a8f4596f5971334893282ade9e8e5f4765b8919793f74147155595ef27b24b7d7d371898668

    Score
    10/10
    persistenceevasiontrojanransomwarebootkit

    • 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