MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and link farm indicators reinforces the phishing and potential malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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://crewmak.ru/uplcv?utm_term=bsc+nursing+2nd+year+msn+book+pdf PDF link annotation
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/161480ebb10ec9---1888393725.pdfIn PDF document text
- http://garant-fond.ru/ckeditor/ckfinder/userfiles/Images/files/79731233025.pdfIn PDF document text
- http://rbtyutj01.com/userfiles/files/regijulupapazuvulinejigiv.pdfIn PDF document text
- https://dukra.sk/editor_uploads/files/93148462300.pdfIn PDF document text
- http://sitarofindiamd.com/userfiles/file/vevakapisijabale.pdfIn PDF document text
- https://hinaweb.com/upload/file/kifatajuvudirule.pdfIn PDF document text
- https://biodez.lt/i/File/43172304619.pdfIn PDF document text
- https://kristinanamaste.eu/files/79290945260.pdfIn PDF document text
- http://sibmaxi.ru/userfiles/file/28489871378.pdfIn PDF document text
- http://go-pxl.com/uploads/files/7684133698.pdfIn PDF document text
- http://balbu.hu/uploads/news/file/50596156307.pdfIn PDF document text
- https://namhunglogistic.vn/site/files/12529078967.pdfIn PDF document text
- http://studiodrago.eu/userfiles/files/71116033138.pdfIn PDF document text
- http://fskyok.com/uploadfile/files/bibivagusumixotobixes.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130882d1ac21---wunagizakuk.pdfIn PDF document text
- https://foodvellythailand.com/upload/files/26912788568.pdfIn PDF document text
- http://ydchem.cn/filespath/files/20210902050343.pdfIn PDF document text
- http://studiogaleazzo.eu/userfiles/files/levajitop.pdfIn PDF document text
- http://videofilm-tv.ru/content/File/fojebisamazumometil.pdfIn PDF document text
- http://telegid.tv/userfiles/file/kovonukolowiguwowotig.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/hqa25r7t6dgku32i0p19fe829g/39615632907.pdfIn PDF document text
- https://kar360.com/resimler/files/malavukunisi.pdfIn PDF document text
- https://wsbtitan.com/images/file/fujaletulifomejodanale.pdfIn PDF document text
- http://maxbrio.kr/files/files/nolonoma.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_off00018856.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18856 | 19952 bytes |
SHA-256: 7a9e03ef1224d664d7bac6c4b95649e096c32ee4ff05fc01ae2160e1149bd306 |
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font_01_sfnt_off0001bc51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BC51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001d468.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D468 | 11436 bytes |
SHA-256: c865efc93f78a775eafcaf029e59dd94d052f4ab8bf53afc114b6310fc5c8883 |
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