MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which appear to be part of a link farm hosted on compromised or disposable domains. The presence of a URL with 'utm_term=upgrade+android+on+samsung+tablet' suggests a lure to trick users into downloading malicious content. ClamAV detection and ML classification strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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=upgrade+android+on+samsung+tablet PDF link annotation
- https://autoskola-scp.com/files/89966220705.pdfIn PDF document text
- http://teknis.it/userfiles/files/gevedujaroturorexafir.pdfIn PDF document text
- http://csc0851.com/userfiles/file/20210910211835_vmjmip.pdfIn PDF document text
- http://xinnethk.com/userfiles/file/3817345028.pdfIn PDF document text
- http://dirpub.org/editor/ckfinder/userfiles/files/56562289987.pdfIn PDF document text
- http://jinshi66.com/uploadfiles/files/4615204623.pdfIn PDF document text
- https://diarch.in/WYSIWYGImage/file/zisuj.pdfIn PDF document text
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613f5d1701a3a---ludamibugomanawegusu.pdfIn PDF document text
- http://indecomavo.pl/userimg/inc/73318598090.pdfIn PDF document text
- https://lawyerupsmart.com/tempimg/file/45195545962.pdfIn PDF document text
- http://world-green-hope.com/uploads/files/faforasijaxasonedegad.pdfIn PDF document text
- https://debcopharma.com/userfiles/file/41132162587.pdfIn PDF document text
- https://thic.net/plugin/ce1/ckfinder/userfiles/files/puludojiwonakuvaw.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/fenoxotalemibozanobiwa.pdfIn PDF document text
- http://sushi-belovo.ru/files/16652346019.pdfIn PDF document text
- http://baraanduliaptti.org/userfiles/file/39859704572.pdfIn PDF document text
- https://valstybestarnyba.com/upckfinder/files/kigizilegejokibaruzozeg.pdfIn PDF document text
- https://inprovitpuertorico.com/ckfinder/userfiles/files/94340199130.pdfIn PDF document text
- http://cobmedia.hu/include/87002588247.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/4e3defa7a4afcbd88de6f373fd2781e1/japukewisuxeravalo.pdfIn PDF document text
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/01da9a7ffa288aaf88e55d1ac5a601e8/37153228232.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_off0000abf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABF6 | 10984 bytes |
SHA-256: 4c9b06be97ed855be6217f1542b54ab0262f004a91676eb8126f9f6834db552c |
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font_01_sfnt_off0000c502.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC502 | 16420 bytes |
SHA-256: 55c2e83bbcc4a361df2d8886cf94a5e5234cd040eeeec41af63b6fa4af17813a |
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font_02_sfnt_off0000eeab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEAB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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