MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The document body was unreadable, but the presence of numerous external URIs strongly supports the link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
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://pistant.ru/uplcv?utm_term=redmi+8+review+india PDF link annotation
- http://sintjorisparochie.nl/userfiles/file/29500969695.pdfIn PDF document text
- http://hiro-seiko.com/upload/files/20923846844.pdfIn PDF document text
- https://suacuachuyennghiep.com/uploads/files/gisekubakedadoxipo.pdfIn PDF document text
- https://wilocom.ro/ckfinder/userfiles/files/88512773979.pdfIn PDF document text
- http://xn--80aafbkbafwdti1ahihccrg.xn--p1ai/pict/file/57583349330.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135d509447ee---pafisi.pdfIn PDF document text
- https://i-try.tw/upfile/files/2021/09/23/xovenusetemej.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615378b2a2386---96285049017.pdfIn PDF document text
- http://shop-cartuning.pl/userfiles/file/8752953284.pdfIn PDF document text
- http://peterpan1996.it/userfiles/files/bolonifufejefagovirego.pdfIn PDF document text
- https://magnettoptan.com/upload/ckfinder/files/46664854005.pdfIn PDF document text
- https://www.domaine-de-la-ferme.fr/ckfinder/userfiles/files/lowidabiwi.pdfIn PDF document text
- https://dienmayngalinh.com/img/files/66473670528.pdfIn PDF document text
- https://shturnev.com/files/foFKED/file/12383329074.pdfIn PDF document text
- http://kxqcgs.com/filespath/files/20210914160104.pdfIn PDF document text
- https://www.tamilsaga.com/ckfinder/userfiles/files/68845744821.pdfIn PDF document text
- https://delaneyllc.cfonewsletter.com/ckfinder/userfiles/files/pufigi.pdfIn PDF document text
- http://tongrentangthai.com/UserFiles/file/17009579167.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614924556b834---59820894202.pdfIn PDF document text
- https://cebrium.ssnn.ro/images/zalule.pdfIn PDF document text
- http://floridare.ru/app/webroot/img/uploads/file/293208_vukuxasosatop.pdfIn PDF document text
- http://cjmfgxfollow.morefriendship.com/upload/files/vivew.pdfIn PDF document text
- http://irpuyesh.com/cache/fck_files/file/baromupugakun.pdfIn PDF document text
- http://zit-tech.com/userfiles/files/17065797333.pdfIn PDF document text
- http://sbcnepal.com/images/file/38316225562.pdfIn PDF document text
- http://svadbavmoskve.com/content/xuploadimages/file/13736611153.pdfIn PDF document text
- https://easyown.ddproperty.com/datas/files/61025736909.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_off0000b241.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB241 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA53 | 15108 bytes |
SHA-256: 31827b6a62350515326fb6bef3fef22de7ff855d64292d6206f1d82c57c771a6 |
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font_02_sfnt_off0000f0bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BB | 10380 bytes |
SHA-256: 1ed289a55d45095df11c8aad0fccbc9cca94f7cd5d33e9416cc66671ad472167 |
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