Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256bad4186ff9b35e5561efa8aae7a32dbde145c3b9e120ce86a522a7610f1c4e59
MD57f7efa4a8f013bffaefd5bbd24ada276
File Typeexe
Size994.5 KB
First Seen2022-11-09
File Name0411r_cr4.dll
TagsBUMBLEBEE, exe

Malware Family: Bumblebee

Bumblebee, BazarLoader'ın halefidir.

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

Threat Indicators (IOC)

  • SHA256: bad4186ff9b35e5561efa8aae7a32dbde145c3b9e120ce86a522a7610f1c4e59
  • MD5: 7f7efa4a8f013bffaefd5bbd24ada276

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: bad4186ff9b35e55"
        threat_level = "high"
        first_seen = "2022-11-09"
    condition:
        hash.sha256(0, filesize) == "bad4186ff9b35e5561efa8aae7a32dbde145c3b9e120ce86a522a7610f1c4e59"
}

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 bad4186ff9b35e5561efa8aae7a32dbde145c3b9e120ce86a522a7610f1c4e59 # MD5 7f7efa4a8f013bffaefd5bbd24ada276
TypeValueNote
sha256 bad4186ff9b35e5561efa8aae7a32dbde145c3b9e120ce86a522a7610f1c4e59 Sample:Bumblebee
md5 7f7efa4a8f013bffaefd5bbd24ada276 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