Bumblebee | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256214ad72cf2e76920c92cdcd5825a5d9c52b3705432e0c94371707fa410fb88e3
MD576ffee99b9a7628352122b5cbd765e2c
File Typeunknown
Size1943.3 KB
First Seen2022-08-30
File Namessasrfdcd.ps1
TagsBUMBLEBEE, ps1

Malware Family: Bumblebee

Bumblebee, BazarLoader'ın halefidir.

TypeLoader
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTPS
PurposeCobalt Strike dropper
First Seen Year2022

Threat Indicators (IOC)

  • SHA256: 214ad72cf2e76920c92cdcd5825a5d9c52b3705432e0c94371707fa410fb88e3
  • MD5: 76ffee99b9a7628352122b5cbd765e2c

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: 214ad72cf2e76920"
        threat_level = "high"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "214ad72cf2e76920c92cdcd5825a5d9c52b3705432e0c94371707fa410fb88e3"
}

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 214ad72cf2e76920c92cdcd5825a5d9c52b3705432e0c94371707fa410fb88e3 # MD5 76ffee99b9a7628352122b5cbd765e2c
TypeValueNote
sha256 214ad72cf2e76920c92cdcd5825a5d9c52b3705432e0c94371707fa410fb88e3 Sample:Bumblebee
md5 76ffee99b9a7628352122b5cbd765e2c 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