MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and a link farm. The PDF contains numerous URLs pointing to potentially compromised hosting, suggesting a phishing or malware distribution lure. The embedded JavaScript likely facilitates the redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://philabc.ru/uplcv?utm_term=watch+blade+runner+online
- https://ibextrail.com/editor-images/35343497912.pdf
- http://btsoft.vn/uploads/files/53784636781.pdf
- http://4els.ru/uploads/images/files/rusolufitujuzuk.pdf
- https://recrut.com/files/files/59505825502.pdf
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/8a8d166262852c3f1c3d7d412e473359/55739363815.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161425086b2032---35570093027.pdf
- https://www.bnbtravels.com/ckfinder/userfiles/files/roxeguzosubikaxim.pdf
- http://hferrynetworks.com/FileData/ckfinder/files/20210925_2B7FFFEC45F522F2.pdf
- http://saluteebenesseresas.it/userfiles/files/79982119050.pdf
- https://pixel.bg/img/file/nimale.pdf
- http://adasbruiloften.nl/userfiles/file/61208071371.pdf
- https://mayphotocopydogia.com/upload/files/38398420959.pdf
- http://prime42.ru/userfiles/files/61221000739.pdf
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/f1303256dbbbe007aba85ca745e411ae/xibofarotidakipanug.pdf
- http://www.coverseg.com/uploads/ckfinder/files/70143772200.pdf
- http://ladispensadicampagna.it/uploads/assets/file/lozopisabujotevanap.pdf
- http://kaupa.cz/userfiles/file/53561958698.pdf
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/3bbae99ccd6130aeedeeb99a23a582c4/88279264324.pdf
- https://arerp.kr/data/file///16692402580.pdf
- https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/viresovexukexav.pdf
- http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/80502553727.pdf
- http://dulichtantai.com/files/uploaded/files/18074560079.pdf
- http://paolacaone.eu/userfiles/files/85781333420.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b045.bin7b5997878797ea4f97a98d5b310140bec0d8c7b5762984c0de64772b33ed22a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB045 | 17292 bytes |
font_01_sfnt_off0000dc37.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC37 | 16792 bytes |
font_02_sfnt_off0000f44e.binfbd7c48a889a8de93a17e1a87ec2cb061a095002f851acbd4a1186e5f7873b11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44E | 10532 bytes |
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