SystemBC | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA25614b8196f833fbd15b0754d1b08dba499285f4c2b6f856c89c28b3658912e974c
MD503c3ba4e7725a5f744cd3fa40609df46
File Typeexe
Size249.5 KB
First Seen2023-05-13
File Namei.exe
TagsSystemBC

Malware Family: SystemBC

SystemBC, SOCKS5 proxy ve C2 dropper'dır.

TypeLoader
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTPS
PurposeSOCKS5 proxy loader
First Seen Year2019
AliasesCoroxy

Threat Indicators (IOC)

  • SHA256: 14b8196f833fbd15b0754d1b08dba499285f4c2b6f856c89c28b3658912e974c
  • MD5: 03c3ba4e7725a5f744cd3fa40609df46

System Cleanup Guide

  1. Disconnect the system from the network — the loader may be downloading more malware
  2. Analyze every downloaded payload
  3. Inspect all network traffic and cut suspicious connections
  4. Run a full antivirus scan
  5. Consider reimaging the system

YARA Rule Hints

rule SystemBC_SHA256 {
    meta:
        description = "SystemBC sample: 14b8196f833fbd15"
        threat_level = "medium"
        first_seen = "2023-05-13"
    condition:
        hash.sha256(0, filesize) == "14b8196f833fbd15b0754d1b08dba499285f4c2b6f856c89c28b3658912e974c"
}

SystemBC — Malware Profile

SystemBC proxy botnet. Embedded TLS private key BEGIN/END PRIVATE KEY PEM. Tor SOCKS5 proxy tunnel. Used by Ryuk/Conti/DoppelPaymer ransomware for C2 tunneling.

Malware Type
Loader
Programming Language
C++
C2 Protocol
HTTPS
Target Systems
Windows
Also Known As (AKA)
Coroxy

Technical Details

Backdoor ailesi: TCP/HTTP C2, gizli uzak erisim, kalicilik mekanizmasi (servis/Registry), shell komutu calistirma, dosya transfer, anti-forensic teknikleri

Capabilities & Behavior

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC List (2 indicators)

IOC — SystemBC
# SHA256 14b8196f833fbd15b0754d1b08dba499285f4c2b6f856c89c28b3658912e974c # MD5 03c3ba4e7725a5f744cd3fa40609df46
TypeValueNote
sha256 14b8196f833fbd15b0754d1b08dba499285f4c2b6f856c89c28b3658912e974c
md5 03c3ba4e7725a5f744cd3fa40609df46

C2 Servers (1 recorded servers for this family)

Address Type Port Protocol Status Country
134.255.218.162 ip 4001 TCP inactive LV

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

Tags
systembcloadermalwaremediumsha256analizzenginleştirilmiş