MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous embedded URLs, many of which point to compromised WordPress upload directories and other potentially untrustworthy domains, suggesting it functions as a link farm designed to redirect users to malicious content. The presence of these links and the overall structure align with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9924
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://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a1622dd24b6---89685619919.pdf
- http://wksystems.net/HotelEstimator/userfiles/file/2284207636.pdf
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/dmnb0aj3ibj94i0cdoa0nlna15/79604020109.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/e9s0cse9ina6e1a734grcleguc/42180085686.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a745b1958ff---19696573240.pdf
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608892298d673---wezirufobubusuf.pdf
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/2800acff6daccbae79bba87ae2b912b8/metekexopurizepumu.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/ce6a894cfe6d74d620499404987c7853/82852875349.pdf
- http://marcus-1.com/FileData/ckfinder/files/20210613_687A1F938F835BF1.pdf
- http://lamexmarket.com/uploads/files/6191218517.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a69233cb958---punekeruza.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b53162e76e---xovonilananuna.pdf
- https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/b6218e080a32d0ea95746d6d78636302/23916636368.pdf
- http://ligneus.hu/upload/file/wekexazem.pdf
- https://hchoanglong.vn/userfiles/file/54569477965.pdf
- http://bclgrouptt.com/userfiles/file/dazubuxawizapun.pdf
- http://www.sport-konyv.hu/userfiles/file/tezadirodu.pdf
- http://ahkjt.com/upfile/file/powojudilegez.pdf
- http://geonatlife.es//ckfinder/userfiles/files/jixozusudutuluvibejunum.pdf
- https://5a.ro/ckfinder/userfiles/files/84227989312.pdf
- http://megat.pl/uploaded/fck_files/file/40948348764.pdf
- http://arch-teh.com/pic/userfile/nepafamolisi.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/3f3h4e798eqggo5qme1o2jm4gg/50755721588.pdf
- http://hanboo.cn/Uploads/file/2021061923355570554.pdf
- https://gites-les-bardots.com/userfiles/file/8664253603.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=how+to+enable+pop+up+blocker+in+chrome
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e8d4.binde7437869808f3c9fb58e58f778012bdc98e49e1c703d0f51202b2214dc3f8a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8D4 | 16308 bytes |
font_01_sfnt_off0000fef8.bin3ef0edd7db084eb80403372d3074483e6bb7421d4ed1913ddd3fb38df5838cba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEF8 | 18044 bytes |
font_02_sfnt_off00012d5e.bince0cb928ec86ceb169b24f3b271f6b90a68d185d5ec168ffbbd4f3c6b2a8e2dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D5E | 10880 bytes |
font_03_sfnt_off0001461b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1461B | 16792 bytes |
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