Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256f3a42c9f3523e0e3331422cb1bae8ce8b532a850ffab74c8419240dc66c35023
MD51cc33106d2df1d2a5d6f0910b198ac9f
File Typeiso
Size2876.0 KB
First Seen2022-10-06
File NameInvoice_unpaid#7747.iso
TagsBUMBLEBEE, iso

Malware Family: Bumblebee

Bumblebee, BazarLoader'ın halefidir.

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

Threat Indicators (IOC)

  • SHA256: f3a42c9f3523e0e3331422cb1bae8ce8b532a850ffab74c8419240dc66c35023
  • MD5: 1cc33106d2df1d2a5d6f0910b198ac9f

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: f3a42c9f3523e0e3"
        threat_level = "high"
        first_seen = "2022-10-06"
    condition:
        hash.sha256(0, filesize) == "f3a42c9f3523e0e3331422cb1bae8ce8b532a850ffab74c8419240dc66c35023"
}

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 f3a42c9f3523e0e3331422cb1bae8ce8b532a850ffab74c8419240dc66c35023 # MD5 1cc33106d2df1d2a5d6f0910b198ac9f
TypeValueNote
sha256 f3a42c9f3523e0e3331422cb1bae8ce8b532a850ffab74c8419240dc66c35023 Sample:Bumblebee
md5 1cc33106d2df1d2a5d6f0910b198ac9f 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