Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2563fc5edc6cd459a84615801e4c4592b7e97716dc8cf9750839a0ee5560926a234
MD57b5bd27a1ca2f0c06cae607e2f5210cf
File Typezip
Size10352.2 KB
First Seen2025-08-08
File NameMDE_File_Sample_f18bc2617d02743994e10ffb7cb98eca0e8c797d.zip
TagsBUMBLEBEE, version-dll, zip

Malware Family: Bumblebee

Bumblebee, BazarLoader'ın halefidir.

TypeLoader
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTPS
PurposeCobalt Strike dropper
First Seen Year2022

Threat Indicators (IOC)

  • SHA256: 3fc5edc6cd459a84615801e4c4592b7e97716dc8cf9750839a0ee5560926a234
  • MD5: 7b5bd27a1ca2f0c06cae607e2f5210cf

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 Bumblebee_SHA256 {
    meta:
        description = "Bumblebee sample: 3fc5edc6cd459a84"
        threat_level = "high"
        first_seen = "2025-08-08"
    condition:
        hash.sha256(0, filesize) == "3fc5edc6cd459a84615801e4c4592b7e97716dc8cf9750839a0ee5560926a234"
}

BumbleBee — Malware Profile

Bumblebee, 2022 den aktif C++ loader. Conti/Lazarus bağlantılı. ISO/VHD/LNK dağıtım. Cobalt Strike dropper. Anti-debug.

Malware Type
Loader
Programming Language
C++
C2 Protocol
HTTPS
Target Systems
Windows

Technical Details

Loader ailesi: HTTP/HTTPS C2, payload sifre cozme ve bellek icerisinde yükleme, anti-sandbox/VM kontrolleri, process injection, persistence mekanizmasi, yükü indirme ve calistirma zinciri

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 — Bumblebee
# SHA256 3fc5edc6cd459a84615801e4c4592b7e97716dc8cf9750839a0ee5560926a234 # MD5 7b5bd27a1ca2f0c06cae607e2f5210cf
TypeValueNote
sha256 3fc5edc6cd459a84615801e4c4592b7e97716dc8cf9750839a0ee5560926a234
md5 7b5bd27a1ca2f0c06cae607e2f5210cf

C2 Servers (3 recorded servers for this family)

Address Type Port Protocol Status Country
odoca.com domain 443 HTTPS active —
108.61.55.248 ip 443 HTTPS inactive US
45.8.146.78 ip 443 HTTPS inactive RU

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

Tags
bumblebeeloadermalwarehighsha256analizzenginleştirilmiş