MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or redirection scheme. The ML classifier strongly indicates maliciousness. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a phishing or malicious content delivery attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1614013ed16903---8777157070.pdf In PDF document text
- https://www.ftha.org/admin/ckfinder/userfiles/files/vejiwibuwafalibeputaxofe.pdfIn PDF document text
- http://abwingsmd.com/uploads/files/99640433407.pdfIn PDF document text
- http://coomargroup.com/ckfinder/userfiles/files/degofaturezesalib.pdfIn PDF document text
- https://tekmaker.com/upload/files/sosaxeluvejigibulaxomeku.pdfIn PDF document text
- http://yourhealthyanswer.com/ckfinder/userfiles/files/mowuz.pdfIn PDF document text
- http://cppzone.ru/users/blogs/file/11515325769.pdfIn PDF document text
- http://tznjl.com/userfiles/files/31602368706.pdfIn PDF document text
- http://viethanit.vn/hinhanh/file/dimazekagoz.pdfIn PDF document text
- http://studiopol.it/userfiles/files/79540185208.pdfIn PDF document text
- https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/kifaruvew.pdfIn PDF document text
- http://beccaro.it/userfiles/files/kebos.pdfIn PDF document text
- https://ispartaprefabrik.com/ckfinder/upload/files/pabepebopipij.pdfIn PDF document text
- http://studiofranzoni.eu/userfiles/files/4539955488.pdfIn PDF document text
- http://www.sudaff.com/pics/file/dajetakalim.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/1p8s0vj08cvhb28glge6sigjp7/papum.pdfIn PDF document text
- http://ahzycw.com/upload_fck/file/2021-9-5/20210905002217275218.pdfIn PDF document text
- https://inprovitcolombia.com/ckfinder/userfiles/files/rozejasawopaf.pdfIn PDF document text
- http://jnnycc.org/userfiles/file/xadikigakoses.pdfIn PDF document text
- http://uniradioweb.info/userfiles/file/55519303587.pdfIn PDF document text
- https://njshore.drinkpoint.com/uploads/files/siwekazil.pdfIn PDF document text
- http://kbchina.de/upload/88133146065.pdfIn PDF document text
- http://pomocnaukowa.net/Upload/file/visisidepukefuvoranuzemob.pdfIn PDF document text
- http://xn--80aatg4aaaddkhfhbf3evf.xn--p1ai/ckfinder/userfiles/files/bamizaba.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1613d871e106a4---85501810820.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=ino+one+dual+sim+3g+androidPDF 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_off0000b81b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB81B | 16564 bytes |
SHA-256: 762ca48025ee12a9a0cd496e05630bbbd4df602df0cd2b98e796d0cae91a45ab |
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font_01_sfnt_off0000e2db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2DB | 10716 bytes |
SHA-256: 15aa71904333749a6d0dbfa35eb9cd586fcae135317cd729139ec6f3af099e7c |
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font_02_sfnt_off0000fb36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB36 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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