MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a phishing or malware distribution campaign. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating the document is designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 8
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://nomylo.ru/uplcv?utm_term=stellar+evolution+worksheet+answer+key
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/0a13da52da8e90bc9c60e6e5d94dc5dc/giduvereretituforikozolog.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/b2p8etn03ktf7v5b4s1covl7l1/kudonazawu.pdf
- http://madonnina.info/userfiles/files/52957373784.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16081b1fbc9c12---19496640118.pdf
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb9e6d0d85---kenupoxebipikop.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/ee217283018c111e8c677c14a5e9af9b/xofevebixuwetuwisat.pdf
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ad5c4be5932---54460185144.pdf
- http://gelateriacool.it/userfiles/files/wisewidujirojid.pdf
- https://abofahed.com/userfiles/file/pumili.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/rsim2df5d3272kc1r42l73ao83/tuwezoteponegekur.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/15gdhaq8m8o45h2gvv09p36ed4/rejabukud.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/169962e7e3d863c820d5eff4f4aaba63/80830440280.pdf
- https://alihuata.com/userfiles/file/37180173287.pdf
- http://newcastlehigh1967-50threunion.com/clients/43248/File/76105385591.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1778de1a36---xexopobevosex.pdf
- https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/201aef5aa9effcc76f42a13f0b673f2c/ragan.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/15e337ff34da03b68aa44eaef1c02b67/36282120048.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/0f51d673fd9a1b40ad7b429615d635c0/zutofemitox.pdf
- http://familiesforfamilies.ca/clients/a/a9/a9b42c05011d3bb27e7f7ec2ed30324f/File/19614885712.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073a952e2a63---mavetebenuxisidapexozimu.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/161033f13be0ea---bemomevafiwofodebefipurev.pdf
- https://soudurelauziere.com/upload/editor/file/36846513716.pdf
- https://taevlingar.se/images/pages/file/94299480831.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_off0000c0fe.bind81c396fbf0d5cd5697afbe65a1f85169601249771fe280068e779eec3357d8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0FE | 10740 bytes |
font_01_sfnt_off0000d9aa.binb41a159ae16a0eb0c9d99ea81bf7e331299660bdd5656b8eaa8b343d1c703e2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9AA | 15124 bytes |
font_02_sfnt_off0000ffe8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE8 | 16792 bytes |
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