MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The embedded JavaScript likely facilitates the redirection or further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://rent-lease-no1.com/userfiles/file/20210911061523.pdf In PDF document text
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/oe89snocnp5phdjjenktemh2dm/67578736791.pdfIn PDF document text
- http://prttour.ca/FileData/ckfinder/files/20210902_5A5613DCE2260F29.pdfIn PDF document text
- https://www.sherpachristain.org.np/ckfinder/userfiles/files/82376758002.pdfIn PDF document text
- http://uptownfallschurch.com/uploads/files/gutor.pdfIn PDF document text
- https://chachachat.info/js/ckfinder/userfiles/files/jifudetidiwowom.pdfIn PDF document text
- http://www.bongbansaigon.com/uploads/files/farebelurumatitige.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/haae0bsunodhlsda1p4ea5ac8p/27264381502.pdfIn PDF document text
- https://funke.be/data/file/5400204807.pdfIn PDF document text
- https://ensegun2.com/ckfinder/userfiles/files/radetolimokenab.pdfIn PDF document text
- https://smartmedia.ro/app/webroot/files/userfiles/files/18538433435.pdfIn PDF document text
- https://consurs.ro/ckfinder/userfiles/files/70842126121.pdfIn PDF document text
- http://hanarotalk.com/userfiles/file///84707384747.pdfIn PDF document text
- http://pc-driver.ru/userfiles/files/2109428448.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613da8c13afbe---kupubaxuk.pdfIn PDF document text
- https://futurefacesmiami.com/uploads/file/85691474952.pdfIn PDF document text
- http://honmamon-s.com/img_seminar/userfiles/file/79409260555.pdfIn PDF document text
- https://apz-arte.com/ckfinder/userfiles/files/3119195234.pdfIn PDF document text
- https://maviet.vn/upload/files/48546882344.pdfIn PDF document text
- https://ichibaninfotech.com/ckfinder/userfiles/files/ruliwalawe.pdfIn PDF document text
- http://hkacca.com/userfiles/vabifu.pdfIn PDF document text
- http://www.patriarca-batiment.com/ressource/site-image/files/29489906555.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/sd9nnk31fhgbpqqton2k3hb6ul/forarabiropomawo.pdfIn PDF document text
- http://seamacros.com/upload/file/xuroxowusovefoxupax.pdfIn PDF document text
- http://tz5168.com/uploadfile/image/2021/09/03/file/20210903_073015_159.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=easy+video+editor+androidPDF 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_off0000d707.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD707 | 17132 bytes |
SHA-256: 28c7b81b5f10a032e1352762132f4d7069faf24e022aa522c20bdb5b8ec08118 |
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font_01_sfnt_off00010356.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10356 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011b6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B6D | 10360 bytes |
SHA-256: a9b1934327cdfd5f2f8b3283e30e92754bba70533e7f7a709de26a98b15db99f |
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