MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. Static analysis revealed numerous embedded URLs, many pointing to compromised CMS upload directories, suggesting a phishing or malware distribution attempt. The presence of these links indicates the document's primary function is to redirect users to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://irlanc.ru/uplcv?utm_term=ejemplo+de+tipo+de+texto+especializado
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/191d59b14354cf616ca131b48a594569/mibilol.pdf
- https://baohohoanglong.com/userfiles/file/xuzav.pdf
- http://autoset66.ru/admin/ckfinder/userfiles/files/55383269882.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/pfe7n5383023d8ntf9e7pvpgs8/90942624469.pdf
- https://sahodayabbsr.com/test/fckeditor/file/91854462823.pdf
- https://denizlihorozu.com/resimler/files/3100578088.pdf
- http://businessvaluationapp.com//fck_files/file/36718112290.pdf
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c8b4a7833ef---sasuliluvomofopofudakib.pdf
- http://women-for-marriage.com/ckfinder/userfiles/files/kowazifaxofexuwarox.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8ea562001---498315382.pdf
- http://ajivikafinance.com/userfiles/file/11524176640.pdf
- http://1970lions.com/clients/5/57/57eb30a5877ba0c7834658d164206012/File/woremibolufen.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d24c22d01d7---gigar.pdf
- http://pizzeriagiganti.ro/imagini_ws/48327517807.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf33483ebe7---resafis.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a673ca325c0---96427625058.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5f754c00f---89647819040.pdf
- http://writtenmail.com/upload_images/file/34747651204.pdf
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/bv9l69ato79ngcec1cn3ck8e05/tagepijedefika.pdf
- https://www.explosivo.gr/wp-content/plugins/super-forms/uploads/php/files/81d82a50122ae00fe172858387533c6f/16198877512.pdf
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/5af7143724abc3dd3f20aa2e7f5b9051/7816113203.pdf
- https://showdetango.com/bafa/userfiles/file/67379601610.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af955fb3200---25849480803.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f2d6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2D6 | 16792 bytes |
font_01_sfnt_off00010aed.binc77203fe382442c33e6377483b973cb85ba0f87affd5276b35e421c2ac0e8827 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AED | 10744 bytes |
font_02_sfnt_off000123a2.bine6c28bcbb9504c999213fa5941700cc8f1038f65379530841fee8dccf19cda25 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123A2 | 18340 bytes |
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