MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external PDF files hosted on various domains, many of which appear to be compromised or disposable. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly suggests a phishing or malware distribution campaign leveraging SEO poisoning tactics. No scripts were extracted, but the structure points to an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 http://kisito.com/userfiles/file/ganofanopawuladi.pdf In PDF document text
- http://bandenplaats.nl/cmsimages/file/dogudiziberajilasazorok.pdfIn PDF document text
- http://studiofranzoni.eu/userfiles/files/4539955488.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/696ed97b014f926ac80886278cd19a4c/76476203699.pdfIn PDF document text
- http://farmaciafici.com/userfiles/files/revidedupevizixinef.pdfIn PDF document text
- https://lawweb.info/mycms/admin/userfiles/file/95725438019.pdfIn PDF document text
- http://weddingdove.tw/uploads/files/202109040505143044.pdfIn PDF document text
- https://fancybox.pamlskovnik.cz/ckfinder/userfiles/files/gakoluwij.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/161301bd84499b---94025863089.pdfIn PDF document text
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612effe18af5a---fopaxinubesajupi.pdfIn PDF document text
- http://amongelite.com/ci/userfiles/files/total.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/7649301031.pdfIn PDF document text
- http://vlajamo.cz/images/file/nokukareju.pdfIn PDF document text
- http://cctechlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/3519456090.pdfIn PDF document text
- https://xn--72ca1bzcdf9cg5df4n5a8cei.com/userfiles/files/4254755573.pdfIn PDF document text
- http://bidmitt.com/img/files/file/65205257732.pdfIn PDF document text
- http://fc-junajted.com/upload/datoteke/8554443524.pdfIn PDF document text
- http://mdfgiare.com/upload/files/zesapomekilizixop.pdfIn PDF document text
- http://uco-kampen.com/media/files/xireguzef.pdfIn PDF document text
- https://98ing.com/upload/ck/files/20210901_103355.pdfIn PDF document text
- https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb9bd1a0ce---88957527105.pdfIn PDF document text
- http://naszemotyle.natura2000.pl/imgturysta/files/titazux.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=friends+with+benefits+movie+online+freePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d09c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD09C | 10728 bytes |
SHA-256: 1c21e4896c8d224d964d7042a0b122e27b2a7ab4923255754f5e62cfc00887b6 |
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font_01_sfnt_off0000e903.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE903 | 18264 bytes |
SHA-256: 97d6ca50dbf33b7dbf4a14b050b9d6ca2697356494abfb451ed3c8719c12ee30 |
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font_02_sfnt_off000118a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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