MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous links, many pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of multiple external URIs and a PDF link to an algorithmically-generated URL reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://catamma.ru/uplcv?utm_term=lego+marvel+super+heroes+free+download+android PDF link annotation
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152f5fb09d76---9048137666.pdfIn PDF document text
- http://ambulatorioveterinariosantanna.eu/userfiles/files/88752711441.pdfIn PDF document text
- http://shtaket46.ru/page_edit/_samples/userfiles/files/wifufidijofedegig.pdfIn PDF document text
- https://houstoncoinclub.org/FCKeditor/file/48129186445.pdfIn PDF document text
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/7fe0b53ab1356c972e422a515b064cc4/95815258927.pdfIn PDF document text
- https://angkaganjil.com/contents/files/kozarikawebapubitatugizoz.pdfIn PDF document text
- http://9y.bfage.com/upload/files/20210908182423.pdfIn PDF document text
- http://nprofit.hk/userfiles/8541227548.pdfIn PDF document text
- http://www.hydro-tg.pro/upload/file/45147817162.pdfIn PDF document text
- https://dcoderesearch.com/uploads/91679773736.pdfIn PDF document text
- http://mashhadgardi724.ir/basefile/mashhadgardi724/files/32735198440.pdfIn PDF document text
- https://www.la-providence-ehpad.fr/ckfinder/userfiles/files/diwevemadikejevobi.pdfIn PDF document text
- https://elemonbg.com/Files/File/19426374365.pdfIn PDF document text
- https://psiakocky-potisk.cz/webpagebuilder/ckfinder/userfiles/files/venoteviwesiwumas.pdfIn PDF document text
- https://bya-ingenieria.com/ckfinder/userfiles/files/55584479746.pdfIn PDF document text
- http://loscogliodifavignana.it/userfiles/files/mexatisuwo.pdfIn PDF document text
- https://salvamontbihor.ro/app/webroot/files/userfiles/files/3717140952.pdfIn PDF document text
- https://projetounificado.com/uploads/files/84399556882.pdfIn PDF document text
- https://www.aukuras.org/ckfinder/userfiles/files/2909533167.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdf34c819a---75023348384.pdfIn PDF document text
- http://cedule-plachty.cz/files/file/80493036376.pdfIn PDF document text
- http://haozuowenwang.com/imagefiles/file/61562161750.pdfIn PDF document text
- http://geometrabottero.it/userfiles/files/fagipiwefefuki.pdfIn PDF document text
- http://conniecorsentino.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/31851086978.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_off0000b316.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB316 | 11056 bytes |
SHA-256: 33312163f6fc83a2ecbb5c5365355c0c42d74cf9a1ca108a8f8b451218a189e0 |
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font_01_sfnt_off0000cc6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC6C | 18912 bytes |
SHA-256: 42140856c34748c2fdb440cde8f705580a8edfa06e34d14709cf074c7c33f128 |
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font_02_sfnt_off0000fc86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC86 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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