BazarLoader | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA25675de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d
MD5add386c35e2abd1d17bb776a7a69e2d0
File Typexls
Size199.5 KB
First Seen2021-02-02
File Namerequest_form_1612290674.xls
TagsBazaLoader, BazarBackdoor, BazarCall, BazarLoader, kegtap, xls

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: 75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d
  • MD5: add386c35e2abd1d17bb776a7a69e2d0

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: 75de7712c3817911"
        threat_level = "high"
        first_seen = "2021-02-02"
    condition:
        hash.sha256(0, filesize) == "75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d"
}

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 75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d # MD5 add386c35e2abd1d17bb776a7a69e2d0
TypeValueNote
sha256 75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d Sample:BazarLoader
md5 add386c35e2abd1d17bb776a7a69e2d0 Sample:BazarLoader
Tags
bazarloaderloadermalwarehighsha256hash-analizi