Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256ee0f0d5e812870bc71d54b378a8bc28598bddb1953c2b37021c202650858a636
MD5b0e62e79cd4b27a7c4e8521f74224abf
File Typeexe
Size2562.0 KB
First Seen2022-09-23
File NamevRnzQUqsQaEJcu.dll
TagsBUMBLEBEE, dll, 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: ee0f0d5e812870bc71d54b378a8bc28598bddb1953c2b37021c202650858a636
  • MD5: b0e62e79cd4b27a7c4e8521f74224abf

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: ee0f0d5e812870bc"
        threat_level = "high"
        first_seen = "2022-09-23"
    condition:
        hash.sha256(0, filesize) == "ee0f0d5e812870bc71d54b378a8bc28598bddb1953c2b37021c202650858a636"
}

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 ee0f0d5e812870bc71d54b378a8bc28598bddb1953c2b37021c202650858a636 # MD5 b0e62e79cd4b27a7c4e8521f74224abf
TypeValueNote
sha256 ee0f0d5e812870bc71d54b378a8bc28598bddb1953c2b37021c202650858a636 Sample:Bumblebee
md5 b0e62e79cd4b27a7c4e8521f74224abf 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