MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an MFA/2FA-themed lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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://jacksth.ru/strik?utm_term=what+is+the+purpose+of+a+safety+data+sheet PDF link annotation
- http://damvglaz0.xyz/cuanto_es_5_inches_en_centimetrosv0cs1.pdfIn PDF document text
- http://mesanezedid.mypressonline.com/57050500573.pdfIn PDF document text
- http://baffer-shop.space/the_game_novel_terry_schottu2tyc.pdfIn PDF document text
- http://tekesonisopo.22web.org/cyborg_she_movie.pdfIn PDF document text
- http://profer-opt.ru/gardenia_malaysia_annual_report_2014ulty4.pdfIn PDF document text
- http://gozimudowojuzun.mypressonline.com/libro_canciones_infantiles.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://d650f791-4ca6-4964-96f1-ba9fac0414c1.filesusr.com/ugd/adf9cb_c8db4746b8d947c68e906721e97022b5.pdf?index=trueIn PDF document text
- http://tojuzogip.myartsonline.com/92164901592.pdfIn PDF document text
- https://9dc8676a-0e58-44ee-a512-e339c7094702.filesusr.com/ugd/7c0652_8939d037b3d54d058b4ffe8540b493bc.pdf?index=trueIn PDF document text
- http://fixidil.atwebpages.com/benzotriazole_synthesis.pdfIn PDF document text
- http://guriseb.myartsonline.com/ap_calculus_ab_derivatives_of_inverse_functions.pdfIn PDF document text
- https://0ffdd24b-620b-4f4d-94ef-a39da1ca20bd.filesusr.com/ugd/853ce2_e46e2ee547e444e8a847e965fb4d5d11.pdf?index=trueIn PDF document text
- https://1bf92926-22d0-44a1-94fb-b51843c41cd5.filesusr.com/ugd/762c1a_19e512eb7db54331a4c713d3422bac52.pdf?index=trueIn PDF document text
- http://fowakoleviwamop.onlinewebshop.net/27528858623.pdfIn PDF document text
- https://d3826037-6016-486c-99e9-dc41bc666644.filesusr.com/ugd/b81754_1354e7479afe481d91bd24bcb8c3bc9b.pdf?index=trueIn PDF document text
- https://5634f520-c25d-421d-ab67-3d94505d13cb.filesusr.com/ugd/1b85ab_8902b61e2c9d421fb2ee1802ac8c1f5e.pdf?index=trueIn PDF document text
- http://fivamoxopel.epizy.com/tegofixusid.pdfIn PDF document text
- http://fuguzametekobo.myartsonline.com/98593948198.pdfIn PDF document text
- https://7ef7ebf0-bcb0-4ca2-8538-5a19c3e9f01c.filesusr.com/ugd/aff7ca_20a5ce4572a14ae59f6450c33dd8c4d4.pdf?index=trueIn PDF document text
- http://baniginoso.epizy.com/43327542359.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fbe8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBE8 | 4988 bytes |
SHA-256: 32401dbf072aa9e5fc45d5a921aa39586b3d3a245ed7696f9c9f6941f646ad00 |
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font_01_sfnt_off00010d08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D08 | 10796 bytes |
SHA-256: 34e8f31fa1ad38c32051543bb63fb5843f20624d8c4ef4cedb6c01ec67d9fcc9 |
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font_02_sfnt_off000131fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131FC | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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