MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or malicious intent. Numerous external URIs are present, with several pointing to compromised CMS upload directories, suggesting a link farm designed to manipulate search engine results or redirect users to malicious sites. No scripts were extracted, but the PDF structure and URL patterns are indicative of a phishing or SEO spam campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://ketchas.ru/uplcv?utm_term=lsi+meaning+seo PDF link annotation
- http://flywings.sk/UserFiles/file/gasezedawiwafi.pdfIn PDF document text
- https://cuatudongsaigon.net/uploads/files/votibumipuvevofo.pdfIn PDF document text
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/fa8149683ff1f95f1ac15e4362a4a6b6/94703907442.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133dd6ba6f2d---xodijo.pdfIn PDF document text
- http://musicpark-live.com/userfiles/file/potima.pdfIn PDF document text
- http://sanraimundo.cl/dyn/uploads/file/zelomije.pdfIn PDF document text
- https://krafteco.ru/uploads/files/255545594.pdfIn PDF document text
- http://officinedesign.it/userfiles/files/55461212647.pdfIn PDF document text
- http://quranday.org/userfiles/file/1028553633.pdfIn PDF document text
- http://sorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fegipanazivurudidegono.pdfIn PDF document text
- https://bipalisdemo.dashindonesia.com/userfiles/files/53075204018.pdfIn PDF document text
- http://avesta-hmora.boj.se/uploads/userfiles/files/pifipiserilogaxixabo.pdfIn PDF document text
- http://yossy.biz/userfiles/file/81717866709.pdfIn PDF document text
- http://penzion.sarmo.cz/Images/file/17527133953.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133b374a00d1---78711293760.pdfIn PDF document text
- http://antonioruizabogados.es/userfiles/file/ziwaladilapuvad.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/161439f7d25a40---tirofusikepozut.pdfIn PDF document text
- https://lomasdelaweb.com/userfiles/2008.09/file/merob.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/0cb3bf49fc9293303fe7a78507400a1e/gejaweg.pdfIn PDF document text
- https://congchung7.com/upload/file/70778843568.pdfIn PDF document text
- https://tomorrowhubs.com/upload/users/files/95512479429.pdfIn PDF document text
- http://ellev.fr/upload/files/jizomafa.pdfIn PDF document text
- http://postelezmasivu-liberec.cz/ckfinder/userfiles/files/tuxokulenelikufobesuwe.pdfIn PDF document text
- https://mebelihome.ru/upload_picture/femujuveponisebigizafoji.pdfIn PDF document text
- http://azinsaghf.com/cache/fck_files/file/26809773600.pdfIn PDF document text
- https://96662888.com/editor_upload/file/28803354680.pdfIn PDF document text
- 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_off0000cf06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF06 | 17396 bytes |
SHA-256: 77a0cdf4b2e65cd8c7e264cca2082c8e0cc3cac4e1b17c5e8468876fde57411d |
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font_01_sfnt_off0000fbea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBEA | 10164 bytes |
SHA-256: a5c926c4c95a04f99835ced58a7efb3625a9a423a8bd62a07c1b7fbd01029b6d |
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font_02_sfnt_off0001129b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1129B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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