MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the presence of a link farm on disposable hosting, with multiple URLs pointing to PDF files, suggesting a lure to download further malicious content. The document body is heavily obfuscated and unreadable, providing no direct clues to its intent beyond what the heuristics suggest.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://guides2alpes.org/uploads/file/jofef.pdf In PDF document text
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/0b2265ba74062b39ec9a1330d6180fdb/98606484227.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e00de2f675d084bb70fbd726b45ca1ed/54401166987.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac060d833a1---vojofaxejobevoroweweso.pdfIn PDF document text
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/jkruhakrijtgh8oin3p9885l60/tepiwe.pdfIn PDF document text
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/33e75494a199e568e441b99cfd7418c7/8719446101.pdfIn PDF document text
- http://intergeored.com/upload/File/pavafijekadusaforevoriku.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/laorgd5fjlgsbi86nfccrocl9d/45791576324.pdfIn PDF document text
- http://www.macrolepidoptera.hu/userfiles/files/noninoxonemaloj.pdfIn PDF document text
- http://orvosvalaszto.hu/uploads/files/menalivawa.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1174335f1---naligixekifotupowaguwib.pdfIn PDF document text
- https://mylodge-naoshima.com/buwelatuvilajapumak.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc3bf5156e3---fuzopu.pdfIn PDF document text
- http://w-f-l.de/user_img/file/73356792020.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fdfd8335af---94318919460.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f25e7518e5---xifodedebezefixodadux.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/48058071735.pdfIn PDF document text
- http://conblocmanado.com/pics/file/jowaboxugoxozub.pdfIn PDF document text
- https://hophamthaibinh.com/upload/files/wuxokikowinetoburimazape.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609635a855335---81012724456.pdfIn PDF document text
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/397ee7f1a2c397407f275d3cae67ff33/29312190248.pdfIn PDF document text
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/2vi4lo45m3oa83eldb2jgdmkev/xodedudafivezopasofep.pdfIn PDF document text
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/298770b90feb7a14e51b16091f7e1477/85389788469.pdfIn PDF document text
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba84b33cdd5---40862377490.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=the+weeknd+starboy+mp3+free+downloadPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA1E | 18092 bytes |
SHA-256: 691cc365bcb5088cd4ca3cc39fa85edd263a53264a3fbb168e6941fca255795d |
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font_01_sfnt_off0001097f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1097F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001218c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1218C | 1692 bytes |
SHA-256: 6df00093d1a1fd8b8f95901b42ba2863538c90606311dd4adf1993a433792d13 |
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font_03_sfnt_off00012995.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12995 | 11236 bytes |
SHA-256: bc70898ea773dc17d34436646a4d4d4ab72b142a4cc4b3c249148d2026206d26 |
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