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_2.23.15.14.vir

  • Size

    407KB

  • Sample

    200719-8qhp4r2y3n

  • MD5

    878804a067f5d32ba006f57a6635e87e

  • SHA1

    1433f4c575719b8a9269597a997e15ff2420caf5

  • SHA256

    a637d7360ef409b2d9f3038de841583a039287ee7f54d2f634d9cea6c0fd502f

  • SHA512

    707930f022dd4a0595f98c76e8602d8b531c1c7de8c0c311eef082b97fffab67358e7f633541c3afe00e9080d8017eba8e46c89392b5af7eb9e5f838b5f75961

Score
10/10
bootkitevasionpersistenceransomwaretrojan

Malware Config

Targets

    • Target

      chthonic_2.23.15.14.vir

    • Size

      407KB

    • MD5

      878804a067f5d32ba006f57a6635e87e

    • SHA1

      1433f4c575719b8a9269597a997e15ff2420caf5

    • SHA256

      a637d7360ef409b2d9f3038de841583a039287ee7f54d2f634d9cea6c0fd502f

    • SHA512

      707930f022dd4a0595f98c76e8602d8b531c1c7de8c0c311eef082b97fffab67358e7f633541c3afe00e9080d8017eba8e46c89392b5af7eb9e5f838b5f75961

    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

    • Suspicious use of SetThreadContext

    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