Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256b721c0639b89437de7bedaba753502d04acdebaa4f80f96f7b0c32289854d9c2
MD5302a1af6b3c050783ffe33cdf321627b
File Typeexe
Size1057.5 KB
First Seen2022-05-12
File Nameastra.dll
TagsBUMBLEBEE, dll, exe

Malware Family: Bumblebee

Bumblebee, loader'dır.

TypeLoader
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTPS
PurposeLoader
First Seen Year2022

Threat Indicators (IOC)

  • SHA256: b721c0639b89437de7bedaba753502d04acdebaa4f80f96f7b0c32289854d9c2
  • MD5: 302a1af6b3c050783ffe33cdf321627b

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: b721c0639b89437d"
        threat_level = "high"
        first_seen = "2022-05-12"
    condition:
        hash.sha256(0, filesize) == "b721c0639b89437de7bedaba753502d04acdebaa4f80f96f7b0c32289854d9c2"
}

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 b721c0639b89437de7bedaba753502d04acdebaa4f80f96f7b0c32289854d9c2 # MD5 302a1af6b3c050783ffe33cdf321627b
TypeValueNote
sha256 b721c0639b89437de7bedaba753502d04acdebaa4f80f96f7b0c32289854d9c2 Sample:Bumblebee
md5 302a1af6b3c050783ffe33cdf321627b 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