Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA25654752a51b0024f0cf90d7cab52f97cc7798fd5bda8e03b9ade44ee45638dbe8e
MD559dc887601cbaaead82bfe63e5e38340
File Typeexe
Size997.5 KB
First Seen2022-11-05
File NameaMLjTIhBvevLGx.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: 54752a51b0024f0cf90d7cab52f97cc7798fd5bda8e03b9ade44ee45638dbe8e
  • MD5: 59dc887601cbaaead82bfe63e5e38340

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: 54752a51b0024f0c"
        threat_level = "high"
        first_seen = "2022-11-05"
    condition:
        hash.sha256(0, filesize) == "54752a51b0024f0cf90d7cab52f97cc7798fd5bda8e03b9ade44ee45638dbe8e"
}

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 54752a51b0024f0cf90d7cab52f97cc7798fd5bda8e03b9ade44ee45638dbe8e # MD5 59dc887601cbaaead82bfe63e5e38340
TypeValueNote
sha256 54752a51b0024f0cf90d7cab52f97cc7798fd5bda8e03b9ade44ee45638dbe8e Sample:Bumblebee
md5 59dc887601cbaaead82bfe63e5e38340 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