Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256422cc8913acff9049b09caf3a7b7527edf40afd396f3ecfefe5b24aa0da361af
MD57c5f84364e1a97cb176ef9fcc15e2401
File Typezip
Size7.5 KB
First Seen2022-09-19
File NameInvoice_09-19_unpaid_76_document.zip
Tags1909, BUMBLEBEE, 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: 422cc8913acff9049b09caf3a7b7527edf40afd396f3ecfefe5b24aa0da361af
  • MD5: 7c5f84364e1a97cb176ef9fcc15e2401

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: 422cc8913acff904"
        threat_level = "high"
        first_seen = "2022-09-19"
    condition:
        hash.sha256(0, filesize) == "422cc8913acff9049b09caf3a7b7527edf40afd396f3ecfefe5b24aa0da361af"
}

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 422cc8913acff9049b09caf3a7b7527edf40afd396f3ecfefe5b24aa0da361af # MD5 7c5f84364e1a97cb176ef9fcc15e2401
TypeValueNote
sha256 422cc8913acff9049b09caf3a7b7527edf40afd396f3ecfefe5b24aa0da361af Sample:Bumblebee
md5 7c5f84364e1a97cb176ef9fcc15e2401 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