Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA25631dd6d070a65a648b2be9ea2edc9efca26762c3875a8dde2d018eb064bc41e32
MD528c0caed1c9c242f60c8e0884ccbf976
File Typemsi
Size3800.0 KB
First Seen2025-05-20
File Name31dd6d070a65a648b2be9ea2edc9efca26762c3875a8dde2d018eb064bc41e32
TagsBUMBLEBEE, LLC-Best-Consult, msi, signed, version-dll

Malware Family: Bumblebee

Bumblebee, loader'dır.

TypeLoader
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTPS
PurposeLoader
First Seen Year2022

Threat Indicators (IOC)

  • SHA256: 31dd6d070a65a648b2be9ea2edc9efca26762c3875a8dde2d018eb064bc41e32
  • MD5: 28c0caed1c9c242f60c8e0884ccbf976

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

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: 31dd6d070a65a648"
        threat_level = "high"
        first_seen = "2025-05-20"
    condition:
        hash.sha256(0, filesize) == "31dd6d070a65a648b2be9ea2edc9efca26762c3875a8dde2d018eb064bc41e32"
}

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 31dd6d070a65a648b2be9ea2edc9efca26762c3875a8dde2d018eb064bc41e32 # MD5 28c0caed1c9c242f60c8e0884ccbf976
TypeValueNote
sha256 31dd6d070a65a648b2be9ea2edc9efca26762c3875a8dde2d018eb064bc41e32 Sample:Bumblebee
md5 28c0caed1c9c242f60c8e0884ccbf976 Sample:Bumblebee

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
bumblebeeloadermalwarehighsha256hash-analizi