MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with many URLs pointing to external sites, including those hosted on compromised CMS platforms. The presence of multiple PDF link farm heuristics and the embedded URLs suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://epmresearch.org/userfiles/files/julomaxidusibesorov.pdf In PDF document text
- http://khacdautron.com/Images_upload/files/34159606329.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/bb9a1bd6c21103d5a3ffed5059e06a26/76995802740.pdfIn PDF document text
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/9cb8cd484903dd0e1ed6417343c09a07/povopizuterilozel.pdfIn PDF document text
- http://thanuyentea.com/ckfinder/userfiles/files/wotizezejutufu.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/57975080469.pdfIn PDF document text
- https://wrd13.com/force/file/72339094793.pdfIn PDF document text
- https://ijp2.com/contents//files/rekulorunujakofulero.pdfIn PDF document text
- https://qnzar.com/files/xajiwanasesolaxamesuwab.pdfIn PDF document text
- http://thestarbusan.net/FileData/ckfinder/files/20210714_3E5C993F2B854F04.pdfIn PDF document text
- http://yuli-china.ru/d/files/wawalulavufurerolufuluf.pdfIn PDF document text
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4831bb8742---lifapezokilijokif.pdfIn PDF document text
- http://qkmedica.com/uploads/userfiles/file/79604159686.pdfIn PDF document text
- https://adepotcustom.com/UploadFiles/file/20210430104633114.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c13b19d5539---gapibopefakanizuli.pdfIn PDF document text
- http://u15.ch/ckfinder/userfiles/files/kibodujaf.pdfIn PDF document text
- https://apizf.org/public/file/97042878144.pdfIn PDF document text
- http://adance0112.com/upfile/editor/file/85008431349.pdfIn PDF document text
- http://vksraja.in/fckeditor/upload/file/guvazo.pdfIn PDF document text
- http://wojno-stal.pl/pliki/file/maninovipobij.pdfIn PDF document text
- http://musorcentrum.hu/files/article/file/lodigebomazukibiru.pdfIn PDF document text
- https://shop-ecobati.com/medias/upload/files/visiroxufa.pdfIn PDF document text
- http://video-cycling.de/files/file/jususalitarogugol.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=how+to+insert+a+photo+into+word+documentPDF 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_off0000d76a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD76A | 10912 bytes |
SHA-256: ed159285944164c867bcb0d874205ded5e907197e7949df99db19c84426fabaf |
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font_01_sfnt_off0000f081.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF081 | 16768 bytes |
SHA-256: 3e360ce30a1723904a11c442d0219c3b9717d8d926093c1e842f84f07e7fedff |
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font_02_sfnt_off00011c02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C02 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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