CobaltStrike | Threat Level: critical | Type: C2 Framework

Cryptographic Identifiers

SHA2561c9bf9bddbcd6dc5ebc8583a19c3a0a598532a6e01c4a0193c3a8c3b7f327647
MD518ff67b2f4d4e3f2a8ae474826fc86c8
File Typeexe
Size19.0 KB
First Seen2024-07-31
File Namegg.exe
TagsCobalt Strike, CobaltStrike, exe

Malware Family: CobaltStrike

Cobalt Strike, C2 framework'üdür.

TypeC2 Framework
Programming LanguageJava
Target PlatformWindows/Linux
C2 ProtocolHTTPS
PurposePost-exploitation C2
First Seen Year2012
AliasesCS Beacon

Threat Indicators (IOC)

  • SHA256: 1c9bf9bddbcd6dc5ebc8583a19c3a0a598532a6e01c4a0193c3a8c3b7f327647
  • MD5: 18ff67b2f4d4e3f2a8ae474826fc86c8

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network — unplug ethernet, disable Wi-Fi
  2. Terminate suspicious processes from Task Manager
  3. Run a full system scan with Malwarebytes or Kaspersky
  4. HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
  5. Review newly created tasks in Task Scheduler
  6. Change all your account passwords from a clean device
  7. Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın

YARA Rule Hints

rule CobaltStrike_SHA256 {
    meta:
        description = "CobaltStrike sample: 1c9bf9bddbcd6dc5"
        threat_level = "critical"
        first_seen = "2024-07-31"
    condition:
        hash.sha256(0, filesize) == "1c9bf9bddbcd6dc5ebc8583a19c3a0a598532a6e01c4a0193c3a8c3b7f327647"
}

CobaltStrike — Malware Profile

Cobalt Strike red team C2. @config @connect @key-not-found marker. CreateMutexW. rpc.me potansiyel C2.

Malware Type
C2Framework
Programming Language
Java
C2 Protocol
HTTPS
Target Systems
Windows/Linux
Also Known As (AKA)
CS Beacon

Technical Details

Beacon payload (stageless/staged), C2 malleable profiles, Aggressor Script, process injection (various), lateral movement (psexec/wmi/winrm), credential theft (Mimikatz), HTTPS/DNS/SMB beacon channels

Capabilities & Behavior

Post-Exploitation
Lateral Movement
Mimikatz Entegrasyonu
Process Injection
Payload Staging
Domain Fronting
Covert Channel C2
Beacon İletişimi

IOC List (2 indicators)

IOC — CobaltStrike
# SHA256 1c9bf9bddbcd6dc5ebc8583a19c3a0a598532a6e01c4a0193c3a8c3b7f327647 # MD5 18ff67b2f4d4e3f2a8ae474826fc86c8
TypeValueNote
sha256 1c9bf9bddbcd6dc5ebc8583a19c3a0a598532a6e01c4a0193c3a8c3b7f327647 Sample:CobaltStrike
md5 18ff67b2f4d4e3f2a8ae474826fc86c8 Sample:CobaltStrike

C2 Servers (4 recorded servers for this family)

Address Type Port Protocol Status Country
185.225.17.100 ip 443 HTTPS inactive —
91.215.153.46 ip 8443 HTTPS inactive —
www.mayerondricka.digital domain 443 HTTPS inactive —
onyxtrustsec.com domain 443 HTTPS inactive —

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
cobaltstrikec2 frameworkmalwarecriticalsha256hash-analizi