BazarLoader | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2567235083a31014473c9a538e102efd9b9549ac454f99a5f8b2c36ccfc69045f0c
MD54ec95ca2b0df8475ec8b973ff2fc844a
File Typexlsx
Size289.2 KB
First Seen2021-04-15
File Namesubscription_1618510398.xlsb
Tagsbazacall, BazaLoader, BazarCall, BazarLoader, excel, macros, TrickBot

Malware Family: BazarLoader

BazarLoader, gizli TrickBot grubu loader'dır.

TypeLoader
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTPS
PurposeCobalt Strike staging
First Seen Year2020
AliasesBazarBackdoor

Threat Indicators (IOC)

  • SHA256: 7235083a31014473c9a538e102efd9b9549ac454f99a5f8b2c36ccfc69045f0c
  • MD5: 4ec95ca2b0df8475ec8b973ff2fc844a

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 BazarLoader_SHA256 {
    meta:
        description = "BazarLoader sample: 7235083a31014473"
        threat_level = "high"
        first_seen = "2021-04-15"
    condition:
        hash.sha256(0, filesize) == "7235083a31014473c9a538e102efd9b9549ac454f99a5f8b2c36ccfc69045f0c"
}

BazarLoader — Malware Profile

BazarLoader BazaLoader TrickBot group loader. xigcgabbzkswmicmkatl shared Trigona mutex. DGA 20-char campaign IDs.

Malware Type
Loader
Programming Language
C++
C2 Protocol
HTTPS
Target Systems
Windows
Also Known As (AKA)
BazarBackdoor

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 — BazarLoader
# SHA256 7235083a31014473c9a538e102efd9b9549ac454f99a5f8b2c36ccfc69045f0c # MD5 4ec95ca2b0df8475ec8b973ff2fc844a
TypeValueNote
sha256 7235083a31014473c9a538e102efd9b9549ac454f99a5f8b2c36ccfc69045f0c Sample:BazarLoader
md5 4ec95ca2b0df8475ec8b973ff2fc844a Sample:BazarLoader
Tags
bazarloaderloadermalwarehighsha256hash-analizi