MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as phishing or a trojan. While no scripts were explicitly extracted, the PDF structure and link farm heuristics point towards an attempt to lead users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 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://paymentor.nl/uploads//file/81624923645.pdf
- http://ansonseatery.com/uploads/files/46858528600.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/d74590dd45e5833e973028375343c81b/fasepojuli.pdf
- https://willmarlakesarea2040.com/ckfinder/userfiles/files/labokebibumefokolaxe.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/3gbp15m8338v0h05n3lcuskmru/pipixirifirimereniwa.pdf
- http://zaun-produzent.de/userfiles/file/29952595683.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607e31f1ed99b---94649629298.pdf
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/16089334c77c1d---78667076224.pdf
- https://juhaszautovill.hu/userfiles/file/lajij.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/fbovd6f441uh7mngvsnuvpn5en/80131555581.pdf
- http://backkwang.com/userData/board/file/zanusozojuwomevig.pdf
- http://bestorkate.com/uploads/ckeditor/files/85213129678.pdf
- http://csc-0898.com/userfiles/file/20210627115552_jp55p2.pdf
- http://changju-hotel.com/CKEdit/upload/files/10383782564.pdf
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/8040320206.pdf
- http://beijinghuojia.cn/userfiles/file/vipavovise.pdf
- http://np-laser.com/upload_fck/file/2021-6-26/20210626094254149697.pdf
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/ff27204f273b75ce11be29a93c133e23/xudufo.pdf
- https://avela.md/userfiles/file/33464046277.pdf
- https://cengilli.com/icerik_images/file/71039586052.pdf
- http://kapli74.ru/upload_picture/69655125545.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c690884e17e---mojuliwapegirugadoxepuzes.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608351f458b9a---turavop.pdf
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/adfc93b57cff876aee09eb31b6a6ab7f/93345563851.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=mouth+odor+solution
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000edea.bin6e82cb5a1c4694b90168a21ccc804dc61aa8c9cfd18963cfeda2407dbadb1ef1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDEA | 17652 bytes |
font_01_sfnt_off00011c54.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C54 | 16792 bytes |
font_02_sfnt_off0001346b.binb6aaffe54edbbed349026e952114432483092fbee217ccc0ae2579dede418cab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1346B | 10144 bytes |
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