PDF malware analysis — malicious · 5f96b7dc4fce962b

MALICIOUS

PDF

44.6 KB Created: 2021-09-27 09:13:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25

MD5: 8c411af10456a372d8812e72f8e0907f SHA-1: da960e21b733c01f21177079f70803247ccb6127 SHA-256: 5f96b7dc4fce962baf90f6e444052ea838709f98fd6240633c1c60bf0d82d06e

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs pointing to disposable hosting, characteristic of link farms used to distribute phishing content or malware. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to potentially harmful external sites.

Machine Learning

Nyx PDF Classifier malicious score 0.7887

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://coretry.ru/uplcv?utm_term=nds+rom+pokemon+heartgold PDF link annotation
- http://amuseonline.com/absite/userfiles/file/niruxip.pdfIn PDF document text
- http://teraval.cz/res/file/54737820150.pdfIn PDF document text
- http://haai.org/upload/file/23870844231.pdfIn PDF document text
- https://digitaluzaktanegitim.com/calisma2/files/uploads/zekunepagaz.pdfIn PDF document text
- https://mcq.bmtinhoc.vn/InteriorWeb/images/images_news/files/nutaximezovafozetirili.pdfIn PDF document text
- http://ocean-ex.com/images/blog/file/60597975685.pdfIn PDF document text
- https://x-leather.com/radsportfiles/file/saluzudajigeg.pdfIn PDF document text
- http://lscapital.it/images/file/dubigivexe.pdfIn PDF document text
- http://medrea.ru/upload/files/89349011185.pdfIn PDF document text
- https://rosebankprimary.co.za/inc/ckfinder/userfiles/files/derarubovafadafigil.pdfIn PDF document text
- https://rsun.pro/admin/ckfinder/userfiles/files/libugopijolidov.pdfIn PDF document text
- http://satcomlink.com/userData/board/file/43261999357.pdfIn PDF document text
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413844b8290---fenulokuminasogodu.pdfIn PDF document text
- https://embassyinvietnam.com/webroot/img/files/75056537432.pdfIn PDF document text
- https://thefertilizerequipment.com/d/files/wimob.pdfIn PDF document text
- http://xn--z92bzy85x.com/userData/board/file/54938904649.pdfIn PDF document text
- http://cascad-trans.ru/files/94813661082.pdfIn PDF document text
- https://ddc-touggourt.dz/ar/files/fomirujud.pdfIn PDF document text
- https://cartolmania.it/file/zumunalugunutavatutofubos.pdfIn PDF document text
- http://happy-land.hu/editor_up/lunujixiferubovizoforup.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/90642757590.pdfIn PDF document text

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