Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA25627ed08f278d92ee8d53ee1b1f06ff72923473340e42a42f558544de43534fe0f
MD5de365147eb4d4ee44bbd2bb8bbebc1c6
File Typecab
Size35889.4 KB
First Seen2025-08-08
File Name27ed08f278d92ee8d53ee1b1f06ff72923473340e42a42f558544de43534fe0f.cab
TagsBUMBLEBEE, cab, version-dll

Malware Family: Bumblebee

Bumblebee, BazarLoader'ın halefidir.

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

Threat Indicators (IOC)

  • SHA256: 27ed08f278d92ee8d53ee1b1f06ff72923473340e42a42f558544de43534fe0f
  • MD5: de365147eb4d4ee44bbd2bb8bbebc1c6

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: 27ed08f278d92ee8"
        threat_level = "high"
        first_seen = "2025-08-08"
    condition:
        hash.sha256(0, filesize) == "27ed08f278d92ee8d53ee1b1f06ff72923473340e42a42f558544de43534fe0f"
}

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 27ed08f278d92ee8d53ee1b1f06ff72923473340e42a42f558544de43534fe0f # MD5 de365147eb4d4ee44bbd2bb8bbebc1c6
TypeValueNote
sha256 27ed08f278d92ee8d53ee1b1f06ff72923473340e42a42f558544de43534fe0f
md5 de365147eb4d4ee44bbd2bb8bbebc1c6

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