MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains a link farm with numerous URLs pointing to potentially compromised websites or disposable hosting, suggesting an attempt to redirect users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 http://stphilomenaonline.org/userfiles/file/82313845167.pdf
- http://candybeauty.vn/upload/files/woxawakupavusogosulibef.pdf
- https://jeevandeepspecialcare.com/ckeditor/ckfinder/userfiles/files/1626272374.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec463cbe7a---pawuzux.pdf
- http://oletrans.sk/editor_uploads/files/70560492369.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/2msu8t4iduh32cd4v0uoubu786/21323648259.pdf
- http://dtyxbpzx.com/filespath/files/20210906083054.pdf
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/ram128u95oarc1726sr2ab0ode/32034790379.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/c5tonqkh2co62pd5fkb1uhik85/39782126437.pdf
- http://bienchidan.org/uploads/files/1598171133.pdf
- http://opusbiz.kr/data/editor/file/413844568613db961e7bf2.pdf
- http://libertyquad72.fr/userfiles/file/58408840639.pdf
- http://futurepoolandspa.com/ckfinder/userfiles/files/8987623656.pdf
- https://sayurhijau.com/contents/files/tuguko.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613dcc0d3298f---mazonebuso.pdf
- http://bradzo-ep.com/uploads/files/27891143696.pdf
- https://cupanghitam.com/contents/files/sivasuxiw.pdf
- http://tdbm.vn/upload/files/jesinomudejawixogugetuzej.pdf
- https://gyn-koe70.de/obrazky/file/jenobezimapupujoge.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/8ou88v37iiqeoiem3cjifplfoq/xokaxugakuv.pdf
- https://optimuselearningschool.com/learning/site/images/uploadfiles/kalugozaja.pdf
- http://splhardware.com/UploadFile/file/2021090510043073499.pdf
- http://strategie-online.net/catalogue_dynamique/file/47196323204.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=install+apk+fire+tv
- 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_off0000ccff.binb392e7b721a67663dd48525e59127bfdcd5f8b9e9218af72e6e7ad71116bd3de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCFF | 17724 bytes |
font_01_sfnt_off0000fb2a.bin137cb5812b4b80c2f09951cc1d843b3235f9d58d2040a7b0c355a97abbd72a39 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB2A | 10340 bytes |
font_02_sfnt_off000112a3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112A3 | 16792 bytes |
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