MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting domains. The embedded URLs suggest a phishing or malware distribution scheme, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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 https://pistant.ru/uplcv?utm_term=find+the+equation+of+a+parabola+with+vertex+and+focus PDF link annotation
- https://corcreation.twbiz.me/data/fckeditor/files/20210912_030647.pdfIn PDF document text
- https://0955205219.jwa.tw/userfiles/files/ponewilaxopajeresejog.pdfIn PDF document text
- https://blogsma.com/files/vobon.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/987c835d9e6a331dd8efc3d159dcae73/42142133803.pdfIn PDF document text
- http://aweibel.com/Photo/file/nalabajen.pdfIn PDF document text
- http://purofirstli.net/userfiles/file/tokonabiwusimojowogav.pdfIn PDF document text
- http://aromamahabaleshwar.com/ckfinder/userfiles/files/73679931657.pdfIn PDF document text
- https://www.dogandemir.av.tr/paketler/ckfinder/dosyalar/files/6766890835.pdfIn PDF document text
- http://engcaphone.com/_UploadFile/Images/file/fozivimagaterakoxufu.pdfIn PDF document text
- http://dvif.fr/userfiles/file/vobuguzefe.pdfIn PDF document text
- https://lekkermooi.nl/userfiles/file/12086578718.pdfIn PDF document text
- http://hidropro.hu/upload/rejibujomotep.pdfIn PDF document text
- http://casaledellasignora.it/userfiles/files/63084217306.pdfIn PDF document text
- https://travelworld.ro/userfiles/file/zofofedurixubusovak.pdfIn PDF document text
- http://zjbfjt.com/upload/files/34755498215.pdfIn PDF document text
- https://childprotectionindia.com/lexcyberia/userfiles/files/80895825779.pdfIn PDF document text
- http://yacpa.org/yacpafiles/file/57261963469.pdfIn PDF document text
- http://vitali-schulz-eiskunstlaufen.de/userfiles/files/godabab.pdfIn PDF document text
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614078124a24b---89049179967.pdfIn PDF document text
- http://damvua.com/damvua/public/images/files/2330235968.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16146537216f79---rowagavobirogek.pdfIn PDF document text
- http://murasakijr.com/uploads/files/gopanupofadaxomutuw.pdfIn PDF document text
- http://ride.hu/images/uploads/files/60772636363.pdfIn PDF document text
- https://atpl.aero/ckfinder/userfiles/files/buxifunaroguwun.pdfIn PDF document text
- https://mimzyonline.com/userfiles/file/pelipodugomorexo.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_off0000c44f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC44F | 17996 bytes |
SHA-256: f4ea74cca1316ae059a30d31a6cbc660ed010adbde27e2b78b995add1984382a |
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font_01_sfnt_off0000f30e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF30E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010b25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B25 | 11332 bytes |
SHA-256: 9a38e8953a78592f4d59367be26157eebbde57a8af03be3b03d628008bdd9758 |
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