Hash / BilgiDeger
SHA25681f5c6946c3bf43562738828d1f00fed7010f9e4b6edc24204cb31c57b89e075
MD58e390f1b326f6d1a34e19649f9acb4a6
SHA130576523da625cdc095a0b8241c002df51ed9932
Dosya AdiInv_1550_from_Australian Ethical Investment _490873_16910.pdf
Dosya Türüpdf
Boyut19,352 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 81f5c6946c3bf43562738828d1f00fed7010f9e4b6edc24204cb31c57b89e075 # MD5 8e390f1b326f6d1a34e19649f9acb4a6
TypeValueNote
sha256 81f5c6946c3bf43562738828d1f00fed7010f9e4b6edc24204cb31c57b89e075
md5 8e390f1b326f6d1a34e19649f9acb4a6
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