MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly indicate malicious intent. The document's content, presented as a 'cribbage scoring cheat sheet', is a lure to encourage users to click on the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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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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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://midufefew.ru/123?utm_term=cribbage+scoring+cheat+sheet PDF link annotation
- https://nulebuset.weebly.com/uploads/1/3/1/4/131411431/9232774.pdfIn PDF document text
- https://cdn.sqhk.co/dejuxafe/zB5ifgc/wivigilileterivosado.pdfIn PDF document text
- https://cdn.sqhk.co/vobevufubito/Qcljgjf/pujivurubido.pdfIn PDF document text
- https://cdn.sqhk.co/gisusisabez/OvBKBib/2_dice_roller_1-_6.pdfIn PDF document text
- https://cdn.sqhk.co/mojafefegamo/cftPnI5/free_online_word_games_no_downloads_or_registration.pdfIn PDF document text
- https://cdn.sqhk.co/xolanikipiz/lU3iegi/medemaxagagame.pdfIn PDF document text
- https://cdn.sqhk.co/wareberefiz/n6ynjbk/falling_waters_trail_loop.pdfIn PDF document text
- https://cdn.sqhk.co/mezawuso/ifjejhI/69162700074.pdfIn PDF document text
- https://miwidikanizi.weebly.com/uploads/1/3/4/0/134016908/gafimew_teroxizefo_givenasele_wumefuxotejopa.pdfIn PDF document text
- https://fukajupiboxa.weebly.com/uploads/1/3/5/9/135973929/genuzozo-didirumolalu-suruwijaket-zamutesiwufux.pdfIn PDF document text
- https://cdn.sqhk.co/wubukuxivupe/jcyIifE/bojigugarakud.pdfIn PDF document text
- https://cdn.sqhk.co/soziwariru/heBW3id/63322320774.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://b0c090b1-cb02-46d8-8a69-3fb9d82636b6.filesusr.com/ugd/4dbf3f_816088dea74944de8b591311258060c2.pdf?index=trueIn PDF document text
- https://f867c6cd-7aae-4938-a634-6821dcb48262.filesusr.com/ugd/eb45fa_8f957339296b4bc7b86c918a5fe0a6f7.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/muvemasoxaji/warer.pdfIn PDF document text
- https://3a00e800-a8eb-44ae-aafc-ae9aecab8e06.filesusr.com/ugd/1715bf_2f441d0e413947b78553fb2cfa27024d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bejikefowu/reported_speech_optional_back_shifting_espaol.pdfIn PDF document text
- https://s3.amazonaws.com/vuzotisenixava/95157008202.pdfIn PDF document text
- https://61249681-e2d1-4375-841a-b3723294d79c.filesusr.com/ugd/3d514e_8ce7fef52ff04bafae20ce55647660a3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kasuwevovog/4697690362.pdfIn PDF document text
- https://s3.amazonaws.com/kigavanus/padoneput.pdfIn PDF document text
- https://944456f3-75eb-4cd6-bbfd-656b3713ada1.filesusr.com/ugd/2c8d66_eb9d8188eff447a4b19428b0bf4d12ef.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/legenapi/sivapuranam_tamil_mp3_download.pdfIn PDF document text
- https://s3.amazonaws.com/sugosubexez/xusititudijejiviro.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012536.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12536 | 5076 bytes |
SHA-256: 269055f75c5f65af1a74eb58e23fa8b1d05b7a446ff68959bb4b2e9cdd029d28 |
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font_01_sfnt_off0001366f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1366F | 12688 bytes |
SHA-256: 0c418c5bb252c348dd1b1338ad22609b47140806a20aa7562efddbc9e800afeb |
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