Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256a45960c94a832dd15e0c9113b5599b44b045251f5aa234caf9a117adc0cbabcb
MD5b8e0371531d2a7b3231a7c813179bf46
File Typeexe
Size2564.0 KB
First Seen2022-09-24
File NameRP1mrUhf.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: a45960c94a832dd15e0c9113b5599b44b045251f5aa234caf9a117adc0cbabcb
  • MD5: b8e0371531d2a7b3231a7c813179bf46

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: a45960c94a832dd1"
        threat_level = "high"
        first_seen = "2022-09-24"
    condition:
        hash.sha256(0, filesize) == "a45960c94a832dd15e0c9113b5599b44b045251f5aa234caf9a117adc0cbabcb"
}

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 a45960c94a832dd15e0c9113b5599b44b045251f5aa234caf9a117adc0cbabcb # MD5 b8e0371531d2a7b3231a7c813179bf46
TypeValueNote
sha256 a45960c94a832dd15e0c9113b5599b44b045251f5aa234caf9a117adc0cbabcb Sample:Bumblebee
md5 b8e0371531d2a7b3231a7c813179bf46 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