MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous heuristics fired, including PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM, confirming the presence of a link farm pointing to various domains, some of which appear to be compromised WordPress installations. The embedded URLs suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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://synerhu.ru/uplcv?utm_term=hotstar+no+ad+apk PDF link annotation
- http://shopsuathientu.com/uploads/userfiles/file/33699255123.pdfIn PDF document text
- http://reginahajo.hu/_user/file/7174091218.pdfIn PDF document text
- https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/51809798099.pdfIn PDF document text
- http://samurairamenbar.com/uploads/files/34987041771.pdfIn PDF document text
- http://suchanekstomatolog.pl/files/file/nidipe.pdfIn PDF document text
- http://breakevenpoint.pl/uploads/editor/file/nozamizevosiperajopanom.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16134487c4aac2---22142270443.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/7adda1eed08691c88507ac4b80a4a34a/xugijepafebasofetekoz.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/jixelejixan.pdfIn PDF document text
- https://kuepancong.com/contents/files/88542173534.pdfIn PDF document text
- https://abisspaandboutique.com/nbloom/fckuploads/file/52687741783.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/kff1ulbjgdclm5m52984mfgmj5/fazilovepidadilanobawusib.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a936664fed---75586121401.pdfIn PDF document text
- https://rakowka.pl/userfiles/file/vozawemobejajipixedusex.pdfIn PDF document text
- https://autopsrus.aerovents.com/ckfinder/userfiles/files/16237623303.pdfIn PDF document text
- http://thietbiantoanttk.com/uploads/files/judofanijufewo.pdfIn PDF document text
- http://staropolski.net/Upload/file/58639282460.pdfIn PDF document text
- http://sarljarry.fr/userfiles/file/bopufofeso.pdfIn PDF document text
- https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/labilenavovudivoti.pdfIn PDF document text
- https://cafesca.mx/ckfinder/userfiles/files/89887966894.pdfIn PDF document text
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/81609393054.pdfIn PDF document text
- http://ucg-eg.com/userfiles/file/48854490001.pdfIn PDF document text
- http://paddockj.com/user_data/editor/ckfinder/core/connector/php/upload/files/xopugon.pdfIn PDF document text
- http://toanthinh.vn/webroot/img/files/51845778169.pdfIn PDF document text
- http://canoeing.by/pics/files/89188161020.pdfIn PDF document text
- https://tempegaring.com/contents/files/31987417608.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b833.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB833 | 15736 bytes |
SHA-256: 502626cc598178edb738ac7289a611f1f1bab6563131c5c35d21634e18fc1781 |
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font_01_sfnt_off0000e083.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE083 | 10200 bytes |
SHA-256: 4380a1f9d9e5e145cd18256c3eb0025016d9f1e8be63bf819173c33baf25ce44 |
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font_02_sfnt_off0000f773.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF773 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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