MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan variant. It contains numerous URLs pointing to compromised websites and disposable hosting, suggesting it functions as a link farm to distribute malicious content. The presence of external URIs and link farms indicates an attempt to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://cructi.ru/uplcv?utm_term=how+do+i+take+a+screenshot+on+a+phone PDF link annotation
- http://youngdongtec.com/userfiles/file/20294159029.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-1/20210901055411457530.pdfIn PDF document text
- https://youkuvpn.com/upload/files/4779604636.pdfIn PDF document text
- https://almentispharma.com/ckfinder/userfiles/files/fikisu.pdfIn PDF document text
- http://studioturina.com/userfiles/files/90050605347.pdfIn PDF document text
- http://infinivideo.hu/sites/infinivideo/files/fixejukenowedewadivevuse.pdfIn PDF document text
- http://gimnazjum-krasiczyn.pl/img/userfiles/file/vekomogimak.pdfIn PDF document text
- http://turinhotelcompany.com/userfiles/files/putawima.pdfIn PDF document text
- http://aesg2edcv.handylover.com/upload/files/12985028372.pdfIn PDF document text
- http://netdepphunu.vn/images/userfiles/file/gerevikedekalewad.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131b1a62b9cd---74218571976.pdfIn PDF document text
- http://dongsimkindergarten.com/upload/files/94208837702.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/25acdfa48bb012a9d742357e4dcc22b4/83844952300.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8b602c5d8---zasafoxokabefiro.pdfIn PDF document text
- http://terezmisszio.eu/files/file/93162415354.pdfIn PDF document text
- https://kimcert.net/E/file/53683569422.pdfIn PDF document text
- http://train-in-japan.com/images/blog/file/1206953177.pdfIn PDF document text
- http://hitecds.com/userfiles/file/50958158013.pdfIn PDF document text
- http://ndc-group.ru/uploads/files/jewagukuz.pdfIn PDF document text
- http://jawarakreasi.com/file/katebogopediwokutaroxekes.pdfIn PDF document text
- http://wpklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/winujoj.pdfIn PDF document text
- http://acutecardio.ru/sadm_files/darafeduwu.pdfIn PDF document text
- https://www.ventisilva.com.br/ckfinder/userfiles/files/vobezugamat.pdfIn PDF document text
- http://gintaras.cz/userfiles/file/6758718610.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d6de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6DE | 10732 bytes |
SHA-256: 3b585ef09e114133dd90fe59194bfdac64f1cf19102e3a55173ddf4cf6599b9a |
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font_01_sfnt_off0000ef7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF7A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001078c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1078C | 17736 bytes |
SHA-256: 7689d988f3078aeadc1838bda5d7f6224437f8c61853461134a2f1c37b5190a4 |
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