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 trojan. It contains numerous external URIs and links to compromised WordPress uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, but the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://nomylo.ru/uplcv?utm_term=how+to+recover+lost+data+from+android+internal+memory PDF link annotation
- http://sake2metustin.com/uploads/files/nezoxugonenibumiwa.pdfIn PDF document text
- https://matkinhantai.com/luutru/files/saxoleketetasa.pdfIn PDF document text
- http://gianphoiduyloimodel.com/Images_upload/files/xagirelaweja.pdfIn PDF document text
- http://anapro.com/ckfinder/userfiles/files/72070408637.pdfIn PDF document text
- http://www.yevres.fr/ckfinder/userfiles/files/4245659568.pdfIn PDF document text
- https://ratodua.com/contents/files/19997733129.pdfIn PDF document text
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/eecff86006bb580cc988ec7dc795c50b/nupokulaba.pdfIn PDF document text
- http://philipsphotographystudio.com/10869701603.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/161420dbfd558e---73235277926.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138d888b43d4---wiwikanawebodidazilemij.pdfIn PDF document text
- http://xn--sanitrprofi-p8a.ch/fckeditor/editor/images/file/80927459536.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/99032025727.pdfIn PDF document text
- https://huanghecables.com/d/files/pogofomodumazonuk.pdfIn PDF document text
- http://hejia-ele.net/upload/35396416022.pdfIn PDF document text
- http://studiostocchi.eu/userfiles/files/24678609592.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a82100297---6969688303.pdfIn PDF document text
- https://gedayapi.com/userfiles/file/xanevatininolizemof.pdfIn PDF document text
- http://shangrilatheshow.com/ckfinder/userfiles/files/tixotejopevegej.pdfIn PDF document text
- https://atvatextile.com/upload/ckfinder/files/wevatapidodirefipazivogir.pdfIn PDF document text
- http://ohadalegistrocbarter.com/ckeditor/uploads/files/norivi.pdfIn PDF document text
- https://heureka-cz.eu/files/56428095213.pdfIn PDF document text
- http://maulich.vn/attachment/files/67379034868.pdfIn PDF document text
- http://medicapoland.pl/uploaded/file/kebemusivodenevivowo.pdfIn PDF document text
- http://finadev-groupe.com/userfiles/file/64523906477.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_off0000edcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDCB | 18436 bytes |
SHA-256: aa718f417a53c63c63883d3e0469f80d4ff63c0a6074e70a57030a70a4f3c883 |
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font_01_sfnt_off00011df5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DF5 | 10892 bytes |
SHA-256: bd3162738e8221b01b2833e382fd1f2610ba3ffb1f9179837b47bde0874634f8 |
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font_02_sfnt_off00013736.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13736 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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