PDF malware analysis — malicious · fff89872b06fc07a

MALICIOUS

PDF

48.4 KB Created: 2021-02-25 22:22:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 240c6f97c64c1067b880149e2cf48b6a SHA-1: 1286444e98545c1aa8d569b2b872a0f98e30325a SHA-256: fff89872b06fc07ab8715d80923a097b4022842de8793f2cfc995d818811a641

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are algorithmically generated and hosted on disposable domains, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to trick users into downloading further malware or engaging in phishing activities. No scripts were extracted, but the structure and URL patterns are consistent with a phishing lure.

Machine Learning

Nyx PDF Classifier malicious score 0.7197

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK

PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://jacksth.ru/award?keyword=windows+server+2012+r2+standard+dell+oem+iso PDF link annotation
- http://ourfanz.com/fozejudujiqcly8.pdfIn PDF document text
- http://goossyy.online/59038193714chttu.pdfIn PDF document text
- http://winovigamaj.mygamesonline.org/sunozuweparirixe.pdfIn PDF document text
- http://mainsale.pro/answer_to_divorce_complaint_massachusettsk509i.pdfIn PDF document text
- https://doxefifuz.weebly.com/uploads/1/3/0/9/130969363/lunal.pdfIn PDF document text
- http://org-fruit.space/xorugdimv6.pdfIn PDF document text
- http://lojapidabud.mypressonline.com/tu_puedes_sanar_tu_vida_de_louise_l._hay.pdfIn PDF document text
- http://appletopshop.ru/wanted_bengali_movie_video7mcps.pdfIn PDF document text
- http://teaitalis.space/miss_prepa_7_fotos_sem_censurahjjeq.pdfIn PDF document text
- http://vanimerukaguto.scienceontheweb.net/59966249198.pdfIn PDF document text
- http://geleostone.online/10018442727bss7r.pdfIn PDF document text
- http://privateguardingserviceagainstdanger.site/cars_2006_chick_hicks1ipj9.pdfIn PDF document text
- http://terugate.mypressonline.com/dedication_page_with_blanche_of_castile_function.pdfIn PDF document text
- http://xawegap.mywebcommunity.org/samugu.pdfIn PDF document text
- http://sidiwen.epizy.com/8th_grade_weekly_spelling_words.pdfIn PDF document text
- http://livirava.atwebpages.com/jumitosanusov.pdfIn PDF document text
- http://regaguw.rf.gd/disasorafuraxemu.pdfIn PDF document text

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