MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to numerous unknown and potentially compromised domains, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms, combined with the PDF structure, points towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://unicon-msk.ru/data/files/gomutugixijujaba.pdf
- https://bnbtravels.com/ckfinder/userfiles/files/34544462725.pdf
- http://onlinetradeshow.ir/uploads/files/jozafigorosin.pdf
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc8661709f---93266681216.pdf
- http://imcborivali.org/userfiles/file/98182036881.pdf
- http://ubytovani-budejovice.cz/picture/vtextu/file/17342538447.pdf
- https://quangtriasianwindow.com/uploads/image/files/xulipirumeduw.pdf
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/0df708caa56613d88e1ba39a76308b86/kunoxiputaxinizivowoje.pdf
- https://styliststudios.com/imagesTE/file/20772887064.pdf
- https://vieclamlaocai.vn/webroot/img/files/78171713002.pdf
- https://tims.ro/ckfinder/userfiles/files/17407247904.pdf
- http://www.medicellbank.com/userfiles/files/55661805087.pdf
- http://douzonebnf.com/upload/file///jalik.pdf
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/fec82dc145c01496c5d005bd61ec4b11/kajaduge.pdf
- https://zhbiotech.com/CKEdit/upload/files/5365172276.pdf
- https://idosekotthonaveresegyhaz.hu/files/files/66448594906.pdf
- http://metabolit-plus.ru/files/file/misuvejakomeritop.pdf
- http://bckbytow.naszbip.pl/img/upload/files/xojibotuwutuxeri.pdf
- https://fivetc.vn/uploads/files/zasufakumulakev.pdf
- http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/fegoxel.pdf
- https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/51173748046.pdf
- http://czminghe.com/upload/files/71041986510.pdf
- http://ciarajewellery.com/editor_upload/file/pudidenobenoriduvezikam.pdf
- https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/44758344460.pdf
- https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/fogevalima.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=what+happens+when+you+decline+a+call+on+android
- 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_off0000ba8d.bin5abf6f6993165cf74b3ec360dec6ba68f8eb0318dc95fae5b52351c060cdeec7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA8D | 16628 bytes |
font_01_sfnt_off0000e588.bin3ba1f1bd50c5b68188be152c8cf7e6363c836e06400fe5e7c1f56dfd5518deb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE588 | 10904 bytes |
font_02_sfnt_off0000fec8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEC8 | 16792 bytes |
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