MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file exhibits characteristics of a phishing lure, employing a link farm strategy to direct users to malicious content. The presence of multiple links pointing to compromised WordPress sites and disposable domains, as indicated by the PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, strongly suggests an attempt to distribute further malicious payloads. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://ambulatorioveterinariosismondi.eu/file/58030594780.pdf
- https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/341ff755ba92af38cd5635407fad005a/lujasedoxabati.pdf
- https://medtek.vn/storage/file/31179705662.pdf
- https://victorybear-info.com/userfiles/files/82886800164.pdf
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/fr0jal59dd5rl8sq0fcltvdh37/xebepog.pdf
- http://medica-eg.com/userfiles/file/bimedejajipebunok.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1606d13de9fa0f---314769921.pdf
- http://mikailang.net/userfiles/file/20210625095324_284934701.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/17c84225a917563c672290e6d985452b/bizevo.pdf
- https://q-web.ro/wp-content/plugins/super-forms/uploads/php/files/o1h9rb91542at17i4c60bu6kme/93636330078.pdf
- https://seitonsolutions.com/ci/files/29250986687.pdf
- http://sharon-barron.com/userfiles/files/34137899188.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/dc927dd3ca58905e46355ba7a1663b87/wotipewudaju.pdf
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/4b3dadc7f4b8bd0cf96afc5f0801fcef/51756544454.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160750a65138b3---97080811312.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/7b381dcb9c0c6982cf38c67613556fae/samewekafakimanokulelevo.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/j334rhbfgs6osk4gjleimf16b8/87356204147.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609090c48e8e6---kimolumefigikumelikotuz.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=puppy+ate+its+own+poop
- 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_off0000e99c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE99C | 16792 bytes |
font_01_sfnt_off000101b3.bind85e1aac5d695d26725d26de81dbeffd0da3a73490b7b4a3fc6e445de6db5bf6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101B3 | 10400 bytes |
font_02_sfnt_off00011981.binb70b0305b2f135f20d124ca3475045f65057f6db7ab983d62cba658f55a276ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11981 | 16892 bytes |
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