BazarLoader | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2567703b97dddcf98330ec6fa250a5764df2edd18c8e706e40467ea1479e63240c1
MD5bf6358ad5898be524a9b985d13861f22
File Typedoc
Size34.2 KB
First Seen2021-11-10
File Nameinstrument indenture_11.010.2021.doc
TagsBazaLoader, BazarLoader, doc

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: 7703b97dddcf98330ec6fa250a5764df2edd18c8e706e40467ea1479e63240c1
  • MD5: bf6358ad5898be524a9b985d13861f22

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: 7703b97dddcf9833"
        threat_level = "high"
        first_seen = "2021-11-10"
    condition:
        hash.sha256(0, filesize) == "7703b97dddcf98330ec6fa250a5764df2edd18c8e706e40467ea1479e63240c1"
}

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 7703b97dddcf98330ec6fa250a5764df2edd18c8e706e40467ea1479e63240c1 # MD5 bf6358ad5898be524a9b985d13861f22
TypeValueNote
sha256 7703b97dddcf98330ec6fa250a5764df2edd18c8e706e40467ea1479e63240c1 Sample:BazarLoader
md5 bf6358ad5898be524a9b985d13861f22 Sample:BazarLoader
Tags
bazarloaderloadermalwarehighsha256hash-analizi