MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to potentially compromised or disposable hosting, indicating a link farm designed to redirect users. The presence of ML and ClamAV detections, along with heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM', strongly suggests malicious intent. While no scripts were explicitly extracted, the PDF structure and link farm behavior are consistent with phishing or malware distribution lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://machinesupplier.cn/data/product/file/2021913_23027_426.pdf
- http://jujucuisine.com/userfiles/file/movefosas.pdf
- http://novichiha.ru/pic/file/menowew.pdf
- http://mlead.net/images/e/file/dirifoz.pdf
- http://geologocarmignani.com/userfiles/files/varusojowolukapuguvi.pdf
- https://megalight.lv/uploads/files/rafume.pdf
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/78192891067.pdf
- http://se-ty.com/uploads/userfiles/file/dozububasubafokapokizaf.pdf
- http://www.almansori-ye.com/almansorifiles/files/59496214010.pdf
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16147897a7657d---mulamibiz.pdf
- https://jasz-pap.hu/UserFiles/file/69221078778.pdf
- http://otvorene-srdce.sk/userfiles/file/zazopejesizilomisajiwu.pdf
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161319028dee0b---liponabuluzerop.pdf
- https://longislandinvestmentadvisors.com/nini/userfiles/file/12052519018.pdf
- https://dawnraytech.985.tw/data/file/userfiles/files/73922291796.pdf
- https://corpeverest.com/ckfinder/userfiles/files/46307043987.pdf
- https://ph2020.org/FCKeditor/file/75087511010.pdf
- https://goodnest.info/tctt/sites/aaa/file/2428462265.pdf
- http://tramtronbetong.com/uploads/userfiles/file/43532283131.pdf
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132bebf7ce6d---50337357076.pdf
- http://gaushalango.com/uploaded_files/userfiles/files/xegakeloteso.pdf
- http://xn--j1aii.su/userfiles/file/felirifegutefejigog.pdf
- http://mcap.cz/images/uploadedimages/file/84967264906.pdf
- http://aedelsur.com/contenido/files/fiseb.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16142ff6b93f7b---rakuxigozobadamuba.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=hack+wifi+with+termux
- 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_off0000c7ed.bind8bd03e516502f72eedbf2325d599bf99005f0a727f76657c0f727651195cc04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7ED | 10536 bytes |
font_01_sfnt_off0000dff9.bin4d0b63ceff7169a58dc65680f64cb0b5f55645a3863718160e2399c006dcfb6d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFF9 | 18172 bytes |
font_02_sfnt_off00010f7b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F7B | 16792 bytes |
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