MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of embedded URLs, many of which point to compromised CMS upload storage or disposable hosting. The ML classifier strongly indicated maliciousness, and the structure suggests a link farm designed to distribute traffic or host malicious content. No scripts were extracted, but the overall pattern points to a malicious document likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 5
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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 http://ap116.ru/userfiles/file/xanaruxatagawinuj.pdf
- https://rybczewice.pl/userfiles/file/liwevikilixoduzujugujim.pdf
- http://lifecare4all.com/upload/files/fogulirabafotalajumozemep.pdf
- https://marblobath.com/app/webroot/img/files/wofiwo.pdf
- http://www.monts.sk/upload_images/file/nutunusadafogusikomivoze.pdf
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/c73a50906cc3827527ed020f24bc3fd6/vedaruvajovumakalon.pdf
- http://infoegrafica.com/userfiles/files/13573179099.pdf
- https://angkortaxiservice.com/userfiles/file/88297051810.pdf
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/b7408efa6be99555b555127a90294f5a/93591260240.pdf
- https://aihr-iadh.org/uploads/FCK_files/file/kutawuleg.pdf
- http://eurogeographyjournal.eu/admin/fckfiles/file/jigiwevek.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e20f6613da---70380070895.pdf
- https://cgeminfos.ma/upload/file/dositosifivolaw.pdf
- https://valve-toho.com/userfiles/file/69091685969.pdf
- http://drironcat.com/images/file/gafunonetebawi.pdf
- https://agrilaui.com/userfiles/file/87400409282.pdf
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/160787ec6230dd---80284299926.pdf
- https://kiaavcilar.com/upload/ckfinder/files/63518272412.pdf
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c85aced0b---vajujokonufef.pdf
- http://jucal.es/images/file/puvufepatumigevuximu.pdf
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/gq31h961kqs1al4o7rkuh5a2s6/24579468587.pdf
- http://lumieretvie.com/userfiles/file/sewezurafinulubeg.pdf
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160da71d5de495---66019482374.pdf
- https://abugfreemind.com/userfiles/file/jizapede.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=karek%C3%B6k+ayt+matematik+mps+%C3%A7%C3%B6z%C3%BCmleri
- 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_off0000bdb5.bindcd7fe9c4f3535175e4320f038a3030b41f452c17f7dfd989d555eb4e94f43a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDB5 | 11052 bytes |
font_01_sfnt_off0000d73a.bin76421979809d819dbfa311e39d215d3ac0a6a6f99e081329cebe541825b67564 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD73A | 17252 bytes |
font_02_sfnt_off00010179.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10179 | 16792 bytes |
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