MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this malicious intent. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the classification of this file as malicious, likely used for phishing or to distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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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://0900107678.com/upload/file/51139619512.pdf In PDF document text
- http://capitolmetrophysicaltherapy.com/files/files/pifimuso.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/39df6293ef18559f777abdf016aa66a4/pikizilokomekeg.pdfIn PDF document text
- http://vagtteam.com/userfiles/Files/39920762644.pdfIn PDF document text
- http://www.moyekolodin.com/files/boposabowamafugu.pdfIn PDF document text
- http://antifftech.com/uploadfile/file///2021091215343418.pdfIn PDF document text
- https://www.truck-transport.com/ckfinder/userfiles/files/rizizizepevileri.pdfIn PDF document text
- http://iberryhomemade.com/userfiles/files/53383877377.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613a90493797e---dojirir.pdfIn PDF document text
- http://www.shjkyq.com/up_files/FCK/file/jokopegawobej.pdfIn PDF document text
- https://pracowniatechart.pl/fckpliki/file/52753466521.pdfIn PDF document text
- http://sintellect.ru/Repository/file/luwitevidawujoziwobexala.pdfIn PDF document text
- http://xn--2o2b17g32e8xisqq.com/userData/board/file/41636625986.pdfIn PDF document text
- http://flomojapan.com/upload/files/kivuwijoxafasugabozi.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/14q6k9o9s956r7g017btgmtd57/45658186871.pdfIn PDF document text
- https://newtech-utm.pl/userfiles/file/pujovonujagawudi.pdfIn PDF document text
- http://tieuhocsondong.hoaiduc.edu.vn/ckfinder/userfiles/files/34237903812.pdfIn PDF document text
- https://serka.com/serka/upload/files/fuvibavemo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=data+structures+and+algorithm+analysis+mark+allen+weiss+pdfPDF 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_off0000c7bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7BB | 11460 bytes |
SHA-256: eb87ce5dd82bacf90a4fd5c6437c14d6140a46efdf4bc23ab01981e10b1b6e05 |
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font_01_sfnt_off0000e282.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE282 | 17860 bytes |
SHA-256: 72e884533244b429ef11b9240bb74c7d3d88308f1e3644305a0db17377591c28 |
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font_02_sfnt_off000110ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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