MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggest a link farm designed to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's used as a lure, likely for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://archism.ru/uplcv?utm_term=whiskey+drinks+with+bitters
- https://lncl.org/ckfinder/userfiles/files/80498220290.pdf
- http://sola-brothers.com/userfiles/file/64952743371.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ae8d18c9f00---majex.pdf
- http://expertsystemgroup.com/file_media/file_image/file/jetozax.pdf
- http://goldnumber.info/userfiles/file/ferezetovopubu.pdf
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/36e0bc02a9f94fa394781a0a5da9ab39/65150376226.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b97d77a7815---dizawu.pdf
- https://sieompaysdebray.fr/lesiom/txt/imgadmin/file/50564358599.pdf
- http://linkingpeople.info/userfiles/file/kofududopesojuvu.pdf
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090ebc568980---pugugiketodamazevufalo.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16073952ba5717---35684931971.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adac6077837---kugazedek.pdf
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/mam8fvu1qoeqf45ao13rpkr1bv/tulop.pdf
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/ebeadce17d0b49b0db35bd2375a1d7a6/ligoxogewivonupin.pdf
- https://alternativecarrepair.com/userfiles/file/kuxibonasiperagisuxomijis.pdf
- https://store-connector.com/_upload_bilder/_filemanager/file/35695821348.pdf
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/c5d23ed8516a61b9656559d6d8c53ad6/rijemilobo.pdf
- http://bioscipublisher.com/files/upfiles/file/zinivoxezedaxajeb.pdf
- http://vswet.ru/f/40049878566.pdf
- http://xn--h49al33a2zdp0eo1x.com/DATA/file/20210527045804.pdf
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/2539f18ac13ff700f6ab12b70965700c/80916220829.pdf
- http://amoy-art.com/Upload/file/wutudenumojafo.pdf
- 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_off0000f9e5.binbb9d91b81cbf7744c9bd25670d4b5dd63d8a60f72c22ea1746b785094c3db4b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9E5 | 17208 bytes |
font_01_sfnt_off00012722.bindf1d8ff48d1d8cab37a2fdf347c8f309b32122341161372558c1a42241b99ced |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12722 | 10440 bytes |
font_02_sfnt_off00013ecf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13ECF | 16792 bytes |
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