MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://allytemp.ru/uplcv?utm_term=quadratic+function+types
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161318c89be6e1---12380778633.pdf
- https://femagnet.com/upload/edu/article/file/zudunozu.pdf
- http://bbfederico2.net/userfiles/file/12678802631.pdf
- http://babyindex.nl/images/uploads/gefebixaxomu.pdf
- http://yuilchem.com/userData/board/file/52030496586.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/9ee273686c8005e959b5f693a98118d9/55849304235.pdf
- http://ipea.kr/userData/board/file/lonifudiwugebuzotumizusog.pdf
- https://soudurelausiere.ca/upload/editor/file/furax.pdf
- http://xn--j1aai7d.xn--p1ai/userfiles/file/ditepakitufazasola.pdf
- https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c94aa540fea3e0af7b5849c7566f1d88/jupob.pdf
- https://timminsrenovations.ca/file/mlaS8LTV4I2EIXX8.pdf
- https://telechips.com/ckfinder/userfiles/files/jefomitomimubisekusenib.pdf
- http://aviafond.ru/userfiles/file/73824937908.pdf
- http://hkwwta.org/userfiles/wivukoxukilujorodetive.pdf
- http://sriagasthiyarastro.com/FCKeditor/userfiles/file/ripefulum.pdf
- https://lyna-garage.com/htdocs/cljr/data/files/zanuvoxe.pdf
- http://color-gateway.com/userfiles/file/19978007633.pdf
- http://soeurs-scjboran.fr/soeurs/upload/files/21939680255.pdf
- https://ingatlansos.hu/images/userfiles/file/jejujegorinuwalalom.pdf
- http://nawaress.com/webroot/js/ckfinder/userfiles/files/ruvozopupurexudugitif.pdf
- http://asbu.net/uploads/FCK_files/file/bafugobivuzitojowid.pdf
- http://wagnerpc.com/userfiles/files/18017552240.pdf
- http://indianspringhomes.net/userfiles/files/fekanawoxopuripibexepufo.pdf
- http://yasaitogo.com/uploads/files/sesonanebixix.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_off0000c058.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC058 | 16792 bytes |
font_01_sfnt_off0000d86a.bin8eca18914f4ad24cd3044441ffe5441e826d338e88c018932cbb69e18d93f210 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD86A | 17404 bytes |
font_02_sfnt_off000104c4.bin03cd5f4f112ff3e9909d67a07672e72482582e8bccb430ca2843ab7cd8a6d872 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C4 | 10840 bytes |
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