MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://ketchas.ru/uplcv?utm_term=the+impact+of+the+fourth+industrial+revolution+on+higher+education PDF link annotation
- http://aiswaryamatrimonials.com/fck_uploads/file/51875641218.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/11b5ffcc813e20a3cb9ac06451a98e01/ririgidukadaguludulobeji.pdfIn PDF document text
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/osi2ha4b3nluhrq1gmj5o15ca5/jiwofo.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/3hmlib9qjrg00gtfsuqpfalaj5/96587052115.pdfIn PDF document text
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/6ac6abeddab5193cc9716fc9e72305bd/sotolesawaziv.pdfIn PDF document text
- http://barrospizzadb.com/uploads/files/1948614457.pdfIn PDF document text
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/b8t2anr01e60lhs6rhjsjgsjjr/kadesotepafebutupekefu.pdfIn PDF document text
- http://solarwindependence.com/ckfinder/userfiles/files/9599364608.pdfIn PDF document text
- https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/n4v6cnhmi17i7bidi3ft0ut1pi/71688636181.pdfIn PDF document text
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/f75b09a371e48025169d8fcec125eaef/25718815914.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/d7odfrhn31jhttraernll94jam/58950503307.pdfIn PDF document text
- http://savvyais.com/userfiles/file/12026438589.pdfIn PDF document text
- http://giovanninociti.com/userfiles/files/dafawim.pdfIn PDF document text
- http://www.tsahimmongol.com/uploads/images/files/nifufotemuw.pdfIn PDF document text
- http://doorsatyrau.com/ckfinder/userfiles/files/50723582693.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079fe4f00d7a---92663040108.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/t2ruj8gk5l2aauea3sdgqmupra/63426544304.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e199d5849b0---fukonorusixajulawosefe.pdfIn PDF document text
- http://erdivigado.hu/userkepek/file/tanejuxo.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_off0001b926.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B926 | 18840 bytes |
SHA-256: 48337d729c0ab24b9a12b890740ae870a5538f700fcbf1fcfbbeebd790aefafd |
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font_01_sfnt_off0001ea74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EA74 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0002028b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2028B | 11196 bytes |
SHA-256: 844c6f2407cb84c60651387ac9868d6facad8cd8fb68eabb10f9ba5c5c242b49 |
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