MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, with one specifically identified as a link farm on disposable hosting, suggesting a phishing or malware distribution lure. The presence of embedded URLs within the PDF document further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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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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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://synerhu.ru/uplcv?utm_term=passive+voice+present+past+and+future+exercises+pdf PDF link annotation
- http://zhouzhuanx.com/v15/Upload/file/202194918174993.pdfIn PDF document text
- http://linkingpeople.info/userfiles/file/lipose.pdfIn PDF document text
- http://maihome.hu/admin1/file/82106224263.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/56e6fe345cdc691366ca7ffa3550ad86/suxefipafawopovazul.pdfIn PDF document text
- http://yomamasushitogo.com/uploads/files/70359226699.pdfIn PDF document text
- https://safarekhoob.ir/basefile/safarekhoobir/files/sidomimosenifuvazozu.pdfIn PDF document text
- http://webinaris.net/ckfinder/userfiles/publics/files/ziniwaxivanuxowajizekulow.pdfIn PDF document text
- http://hotelbasantresidency.com/uploads/59415674960.pdfIn PDF document text
- https://eric-parnes.shortex.com/ckfinder/userfiles/files/kaladawisogosuzaf.pdfIn PDF document text
- http://noithatmfc.com/media/ftp/file/85133316342.pdfIn PDF document text
- https://makojudo.pl/zdjecia/fck/file/58423865695.pdfIn PDF document text
- https://indirimlipin.com/calisma2/files/uploads/dexuwepuxogolebaw.pdfIn PDF document text
- http://dalieuht.com/app/webroot/uploads/files/48763561668.pdfIn PDF document text
- https://globalybm.com/ckfinder/userfiles/files/1631508300.pdfIn PDF document text
- http://fittbikese.hu/files/file/xetoma.pdfIn PDF document text
- https://sinarlangit1.com/contents/files/41966143072.pdfIn PDF document text
- http://cissi.it/userfiles/files/9428584941.pdfIn PDF document text
- http://studio70.eu/userfiles/files/tepujitiv.pdfIn PDF document text
- http://www.elstar.ru/uploads/files/bojigatarevuriliwapofebuv.pdfIn PDF document text
- https://gotoko.com/cmsv2/upload/files/rubisu.pdfIn PDF document text
- https://sport-jicin.cz/dokumenty/4703738541.pdfIn PDF document text
- http://vipdiler.ru/files/file/78775798415.pdfIn PDF document text
- http://cmuniontravel.com/userfiles/files/88207100866.pdfIn PDF document text
- http://zerosquareonline.com/file/74047154478.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_off0000b6f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6F0 | 16100 bytes |
SHA-256: 03127bde6cce6de415303b6f7672d8866d86fab69b96122b1b7c31f682d4b830 |
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font_01_sfnt_off0000e028.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE028 | 10836 bytes |
SHA-256: ba8f80e401c7e99a6ff27d18d1d3937e89ac9e5bc5e9d713ec40eb1626abf6ce |
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font_02_sfnt_off0000f962.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF962 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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