MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to potentially malicious content. The ML classifier strongly indicated maliciousness, and the presence of multiple external links supports a phishing or redirection attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 5
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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://crysiq.ru/uplcv?utm_term=good+qualities+starting+with+e PDF link annotation
- https://ww150002.linebot.net/upfile/files/20210924130113.pdfIn PDF document text
- http://dagmar-e.de/userfiles/file/gokizopa.pdfIn PDF document text
- http://otvorene-srdce.sk/userfiles/file/raroxilejifijufogarebo.pdfIn PDF document text
- http://studiomistretta.com/userfiles/files/gagikaxukumi.pdfIn PDF document text
- https://silky.ae/images/bulk_images/files/70508896813.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139dd75103b1---93869400488.pdfIn PDF document text
- http://poetische-malerei.de/web/editor/files/77017585976.pdfIn PDF document text
- http://schubert-hh.de/image/file/50173016692.pdfIn PDF document text
- http://vaness-sens.fr/ckfinder/userfiles/files/xalukivosa.pdfIn PDF document text
- http://belean.pl/userfiles/file/nojekusamaramajugegul.pdfIn PDF document text
- http://arcdesantmarti.com/biocop/Images/images-editor/file/sugid.pdfIn PDF document text
- https://dukupahit.com/contents/files/bozaregapurapiximekisuj.pdfIn PDF document text
- http://wgadget.com/file_media/file_image/file/vibujope.pdfIn PDF document text
- http://inwallendorf.de/userfiles/file/31628059877.pdfIn PDF document text
- http://esistore.be/userfiles/file/jirevasunevedigekedu.pdfIn PDF document text
- https://redengewinnt.com/userfiles/file/3655989017.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/8l1crt6t2nald18hllcc88pius/lemixijatobuluwodigum.pdfIn PDF document text
- http://www.agenbenangbandung.net/file/45562019062.pdfIn PDF document text
- http://soeurs-scjboran.fr/soeurs/upload/files/53912358020.pdfIn PDF document text
- https://pomacanthe-art.fr/imagebeforeafter/files/89088009525.pdfIn PDF document text
- http://aylincinarli.com/fckfiles/file/76286043748.pdfIn PDF document text
- http://sieuthivatlieuhoanthien.com/upload/files/52809008753.pdfIn PDF document text
- http://faw-asia.com/image/upload/files/39875955854.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/1vmanqsun0fc03nu87er957pv7/56962013740.pdfIn PDF document text
- http://oookub.ru/upload/fckeditor/file/39098512584.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_off0000b186.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB186 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c99d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC99D | 10900 bytes |
SHA-256: 628b654e8b3ea13deac65efa3eb8471259b6eec754a66056f4ee435b13b51d8a |
|||
font_02_sfnt_off0000e257.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE257 | 15780 bytes |
SHA-256: 5843c75b95f68ead11b5c72c9fe2fc5abd2a0421081e057d1dda5478fdd15b24 |
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