Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256a035499bec49b0cc817c1b28c54c3e54bf32da37ead102ddcecc774b78f787cc
MD57ac101af437a95d3c807b700cea04b5c
File Typeiso
Size5248.0 KB
First Seen2022-10-10
File NameInvoice_10-05_order_243_PDF.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: a035499bec49b0cc817c1b28c54c3e54bf32da37ead102ddcecc774b78f787cc
  • MD5: 7ac101af437a95d3c807b700cea04b5c

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: a035499bec49b0cc"
        threat_level = "high"
        first_seen = "2022-10-10"
    condition:
        hash.sha256(0, filesize) == "a035499bec49b0cc817c1b28c54c3e54bf32da37ead102ddcecc774b78f787cc"
}

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 a035499bec49b0cc817c1b28c54c3e54bf32da37ead102ddcecc774b78f787cc # MD5 7ac101af437a95d3c807b700cea04b5c
TypeValueNote
sha256 a035499bec49b0cc817c1b28c54c3e54bf32da37ead102ddcecc774b78f787cc Sample:Bumblebee
md5 7ac101af437a95d3c807b700cea04b5c 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