MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to potentially compromised or disposable hosting. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis strongly suggest a phishing or SEO poisoning attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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 http://salamino.pl/userfiles/file/veweponotomaxikalum.pdf In PDF document text
- http://lpxs168.com/filespath/files/20210820091910.pdfIn PDF document text
- https://frontivo.ro/userfiles/file/rikoxutebogerisepemura.pdfIn PDF document text
- https://kingyao.com/uploadfiles/files/20210706_015318_7069.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160867d7f72b44---67335046239.pdfIn PDF document text
- https://toptenstudy.com/upload/files/BodyFile__60C33CCFE6198.pdfIn PDF document text
- https://myphi.biz/nbloom/fckuploads/file/ridemisif.pdfIn PDF document text
- https://dodatnojamstvo.com/userfiles/file/tutefabaworedarenuwubipu.pdfIn PDF document text
- http://messtores.ca/fck_user_files/file/tubiduku.pdfIn PDF document text
- https://pima-alarms.rs/slicice/file/82337458943.pdfIn PDF document text
- http://abpaluso.com/upload/file/76792420248.pdfIn PDF document text
- http://stellar.ru/ckfinder/userfiles/files/6848591519.pdfIn PDF document text
- http://lesbambousbleus.fr/ckeditor/upload/files/96512815055.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/jefibinekagevupigor.pdfIn PDF document text
- http://bandenplaats.nl/cmsimages/file/fopezej.pdfIn PDF document text
- http://tacchigroup.com/public/thread/risorse/file/javexotuzefatilezojuk.pdfIn PDF document text
- https://autoteam.in/ckfinder/userfiles/files/fonalufuni.pdfIn PDF document text
- http://shriadinathbank.com/uploads/39771138028.pdfIn PDF document text
- http://tulga.ru/editor/files/44324438902.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/eb1c2c08e501aa53207cedf8d20a15f4/13473626920.pdfIn PDF document text
- http://diysmart.net/userfiles/file/36066102992.pdfIn PDF document text
- http://drivingschool-brno.eu/files/45730314622.pdfIn PDF document text
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/jozokidije.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/r727fdlpr207nlvvrph790go4j/wapejawelogelaxoseguparun.pdfIn PDF document text
- http://gioiacompany.net/images/upload/file/49894256945.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/2pnmoh23cdpt91ulotcc1j7pf2/33748259079.pdfIn PDF document text
- http://betaempire.com/uploads/userfiles/file/file/72894068704.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=breast+pump+user+manualPDF link annotation
- 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_off0000dce4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCE4 | 10352 bytes |
SHA-256: 52854de6fa272d0482ef2a4b64e6537c77637b7159e8e7bf8fb9a8246bdf5c2a |
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font_01_sfnt_off0000f44e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010c60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C60 | 16116 bytes |
SHA-256: 3c0b52565c714ade7dc8e863c1e793cd3009f417733dec1883ce463ce5f84e03 |
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