Hash / BilgiDeger
SHA256b4d822da39021d4dccf1f4fdee531094e3334d4591a88bfca71829e02ca93f37
MD563dfab731a8ceccf055c3af6e327be7f
SHA1bf66b5824c12212e891e6506d475aa7aa6f26e19
Dosya AdiInv_143469_1199717329697.pdf
Dosya Türüpdf
Boyut43,711 bytes
Ilk Görülme2023-10-13

Tehdit Degerlendirmesi

Bu ornek, hedef sisteme ek zararlı yazılım yuklemek amacıyla tasarlanmis moduler bir yukleyici (loader) olarak tespit edilmistir. Bankacılık trojanları, fidye yazılımları veya diger ikinci asama yukler indirebilmektedir.

Tespit Edilen Yetenekler

  • Payload Indirme
  • Surec Enjeksiyonu
  • Kalicilik
  • Anti-Analiz
  • Sifrelenmis Iletisim

MalwareBazaar Etiketleri

Gozipdfqusbec-comUrsnif

Analiz Notu

Bu ornek Ursnif ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.

Ursnif — Malware Profile

Ursnif/Gozi ISFB banking trojan 2007. magic.js 1 string max obfuski. kpmg/thelancet camouflage. Discord CDN. Man-in-browser.

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

Technical Details

Ursnif (Gozi/ISFB) is one of the oldest banking trojans, active since 2007. Source code leaked 2010 and 2015 spawning numerous variants: ISFB, RM3, LDR4. Man-in-the-browser attacks: form grabbing, video capture of banking sessions, web injections. C2 uses RSA-1024 encrypted HTTPS with domain generation algorithm (DGA) as fallback. RSA-2048 for config encryption, custom binary protocol. Anti-analysis: timing-based sandbox evasion, VMware/VirtualBox artifact detection. LDR4 variant (2022) dropped banking features to focus purely on ransomware delivery. Operated by TA544 (Narwhal Spider) in Italy, and by TA551 (Shathak) in Japan. Uses HTTPS for exfiltration with binary data format.

Attribution / Threat Actor

TA544 (Narwhal Spider), TA551 (Shathak), multiple operators

Capabilities & Behavior

Zararlı Yazılım Aktivitesi
Kalıcılık Mekanizması
C2 İletişimi
Anti-Analiz

IOC List (2 indicators)

IOC — Ursnif
# SHA256 b4d822da39021d4dccf1f4fdee531094e3334d4591a88bfca71829e02ca93f37 # MD5 63dfab731a8ceccf055c3af6e327be7f
TypeValueNote
sha256 b4d822da39021d4dccf1f4fdee531094e3334d4591a88bfca71829e02ca93f37
md5 63dfab731a8ceccf055c3af6e327be7f
Ursnif — Go to Full Profile →

C2 Servers (1 recorded servers for this family)

Address Type Port Protocol Status Country
91.92.109.38 ip 8080 HTTP sinkholed RU

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
Gozipdfqusbec-comUrsnif