Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2568ecf6a6fc3ac4d038df81f60f9916c1fbd6419326483dcfaa8995c6a17a0becb
MD58969a66cca9ba83e72fab942ea2321b0
File Typemsi
Size8823.0 KB
First Seen2023-03-02
File NameFACT6400a.msi
TagsBUMBLEBEE, msi

Malware Family: Bumblebee

Bumblebee, BazarLoader'ın halefidir.

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

Threat Indicators (IOC)

  • SHA256: 8ecf6a6fc3ac4d038df81f60f9916c1fbd6419326483dcfaa8995c6a17a0becb
  • MD5: 8969a66cca9ba83e72fab942ea2321b0

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: 8ecf6a6fc3ac4d03"
        threat_level = "high"
        first_seen = "2023-03-02"
    condition:
        hash.sha256(0, filesize) == "8ecf6a6fc3ac4d038df81f60f9916c1fbd6419326483dcfaa8995c6a17a0becb"
}

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 8ecf6a6fc3ac4d038df81f60f9916c1fbd6419326483dcfaa8995c6a17a0becb # MD5 8969a66cca9ba83e72fab942ea2321b0
TypeValueNote
sha256 8ecf6a6fc3ac4d038df81f60f9916c1fbd6419326483dcfaa8995c6a17a0becb
md5 8969a66cca9ba83e72fab942ea2321b0

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