Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA25691e43c044fdcad13a25d772b91065f78ac7a809a57ace84a4606c4c3e92afaa2
MD5323ee7e3d79671befe72fe6f79f0f6b3
File Typepdf
Size102.1 KB
First Seen2023-02-21
File NameContract_02_21_Copy#101.pdf
TagsBUMBLEBEE, pdf

Malware Family: Bumblebee

Bumblebee, loader'dır.

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

Threat Indicators (IOC)

  • SHA256: 91e43c044fdcad13a25d772b91065f78ac7a809a57ace84a4606c4c3e92afaa2
  • MD5: 323ee7e3d79671befe72fe6f79f0f6b3

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: 91e43c044fdcad13"
        threat_level = "high"
        first_seen = "2023-02-21"
    condition:
        hash.sha256(0, filesize) == "91e43c044fdcad13a25d772b91065f78ac7a809a57ace84a4606c4c3e92afaa2"
}

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 91e43c044fdcad13a25d772b91065f78ac7a809a57ace84a4606c4c3e92afaa2 # MD5 323ee7e3d79671befe72fe6f79f0f6b3
TypeValueNote
sha256 91e43c044fdcad13a25d772b91065f78ac7a809a57ace84a4606c4c3e92afaa2 Sample:Bumblebee
md5 323ee7e3d79671befe72fe6f79f0f6b3 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