MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing or trojan distribution. It contains numerous embedded links, many pointing to domains that appear to be part of a link farm, suggesting an attempt to redirect users to malicious content. The heuristic PDF_RANDOM_URL_LINK specifically flags a link to a dynamically generated URL, reinforcing the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://cheesykeju.com/contents/files/60341975615.pdf In PDF document text
- https://riondene.ch/img/uploads/file/95343081496.pdfIn PDF document text
- https://samirkumarpaul.com/ckfinder/userfiles/files/30326976988.pdfIn PDF document text
- https://kibledergisi.net/resimler/files/2957134486.pdfIn PDF document text
- http://z-sinpro.com/upload/files/99084350766.pdfIn PDF document text
- http://immobiliareborghi.com/userfiles/files/besanowopazoj.pdfIn PDF document text
- http://joyear.com/ckfinder/userfiles/files/fivivimoxipetoguvom.pdfIn PDF document text
- http://ideviceplus.be/app/webroot/files/userfiles/files/34875850719.pdfIn PDF document text
- https://childrencareandliteracysociety.org/userfiles/files/gojukezojegux.pdfIn PDF document text
- http://kancelaria-perfect.pl/app/webroot/media/files/47766711736.pdfIn PDF document text
- https://mantyobras.com/userfiles/file/39012781684.pdfIn PDF document text
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/13ac8251e72f92cb93012cb84955ccc6/lakaw.pdfIn PDF document text
- https://ustunbilgisayar.com/userfiles/files/77741187834.pdfIn PDF document text
- http://daltan.hu/userfiles/file/11952065030.pdfIn PDF document text
- http://ronaldtan.nl/images/photo/15822174911.pdfIn PDF document text
- https://esterkins.de/ckfinder/userfiles/files/sovejipoxixowi.pdfIn PDF document text
- https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/xubusidebetutu.pdfIn PDF document text
- http://funkyspa.net/ckfinder/userfiles/files/mujomaluvojiwon.pdfIn PDF document text
- https://fasleh.net/Files/files/dikebubu.pdfIn PDF document text
- https://solelane.com/ckfinder/userfiles/files/40160670525.pdfIn PDF document text
- http://mirutte.com/newsfiles/files/mumuzebusa.pdfIn PDF document text
- http://stevis.cz/files/file/sizawavijedafitige.pdfIn PDF document text
- http://neoneofitou.com/ckfinder/userfiles/files/6044095374.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=how+to+download+genymotionPDF 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_off0000b13a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB13A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c94c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC94C | 15640 bytes |
SHA-256: e5db22f26fbb980d850045554395ea1c58c57c106704f85f360dc879172644fc |
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font_02_sfnt_off0000f133.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF133 | 10512 bytes |
SHA-256: a0ab95d702aeb529616cc6dcf4b28cba79821d4b18479d582cd176ef7095990b |
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