Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256a635b98a8c5fa3cac2deda41b9f9c5b04adf161901c8405b71208062104b895d
MD5ef8acfc611fa075b18f6763e7116c2ab
File Typexlsx
Size61.1 KB
First Seen2022-05-04
File Namescope_of_work (13).xlsb
TagsBUMBLEBEE, xlsb, xlsx

Malware Family: Bumblebee

Bumblebee, loader'dır.

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

Threat Indicators (IOC)

  • SHA256: a635b98a8c5fa3cac2deda41b9f9c5b04adf161901c8405b71208062104b895d
  • MD5: ef8acfc611fa075b18f6763e7116c2ab

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: a635b98a8c5fa3ca"
        threat_level = "high"
        first_seen = "2022-05-04"
    condition:
        hash.sha256(0, filesize) == "a635b98a8c5fa3cac2deda41b9f9c5b04adf161901c8405b71208062104b895d"
}

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 a635b98a8c5fa3cac2deda41b9f9c5b04adf161901c8405b71208062104b895d # MD5 ef8acfc611fa075b18f6763e7116c2ab
TypeValueNote
sha256 a635b98a8c5fa3cac2deda41b9f9c5b04adf161901c8405b71208062104b895d Sample:Bumblebee
md5 ef8acfc611fa075b18f6763e7116c2ab 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