MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm or SEO manipulation tactic. The document body is unreadable, but the heuristics indicate a focus on external URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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 http://microcement.ua/userfiles/file/91865475697.pdf In PDF document text
- http://vkts.se/userfiles/file/60520457698.pdfIn PDF document text
- http://s4l.vn/storage/ckfinder/files/kilofize.pdfIn PDF document text
- http://newbusan.net/FileData/ckfinder/files/20210809_BCE9B6DB6114F22B.pdfIn PDF document text
- http://phongthuydotho.vn/upload/files/6054458578.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073ae26b63a1---35374936396.pdfIn PDF document text
- http://domoticasociale.it/immaginiNewsletter/file/fijozorikenanu.pdfIn PDF document text
- https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/wiriv.pdfIn PDF document text
- https://farstaslottsvik.nu/anvandarbilder/153/files/fakepepazolowulexo.pdfIn PDF document text
- http://romanakladatelstvi.cz/userfiles/file/36437606385.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1611a1d9336588---14694539418.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/7d5f3953d5b1a27d250db5f039cfb9b2/dalolotenojulafapa.pdfIn PDF document text
- https://alshamiltrading.com/alshamilfiles/file/nujeguf.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a83905ecf6e---midobal.pdfIn PDF document text
- https://gullyracing.it/admin/ckfinder/userfiles/files/67329753237.pdfIn PDF document text
- http://creaorganization.com/depo/sayfaresim/file/zubodogamafezudunajo.pdfIn PDF document text
- http://krevue.cz/UserFiles/File/37235329964.pdfIn PDF document text
- https://cuisinescartier.ca/upload/editor/file/78248838426.pdfIn PDF document text
- https://kit-veron.my/ckfinder/userfiles/files/povebifo.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/sirinifinuzakozob.pdfIn PDF document text
- http://dastone.ru/userfiles/file/tenamosuwele.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160f4699ae1acd---mejarezat.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=950h+wheel+loader+parts+manualPDF link annotation
- 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_off0000d7c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7C0 | 19436 bytes |
SHA-256: 4068870949bc200f00765abab558f202f7777af64a0e6213afb2f1580b16a915 |
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font_01_sfnt_off00010acc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ACC | 11076 bytes |
SHA-256: fa2e73ae55839660d0052d4d18e12b0a5d97eb721b0ba3449f90e4bde3631844 |
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font_02_sfnt_off0001248d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1248D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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