MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised or disposable domains. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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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 http://vektor-bezpeki.com/userfiles/files/66529517477.pdf In PDF document text
- http://mikllc.mn/uploads/files/30595871510.pdfIn PDF document text
- http://talentfuturesservices.com/sharpinstitute/images/files/mupiwinofulanugikad.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161427d96ce0b1---86639442783.pdfIn PDF document text
- https://pnp-studio.com/fckeditorfiles/file/55326838645.pdfIn PDF document text
- https://cauthinh.com/luutru/files/26980152221.pdfIn PDF document text
- http://otestmanager.com/club/data/userfiles/file/20210904215048.pdfIn PDF document text
- http://kwartetproforma.com/userfiles/file/nogutizuviravewasorenefi.pdfIn PDF document text
- http://chinastom.ru/userfiles/file/41817651316.pdfIn PDF document text
- http://ephtour.com/FileData/ckfinder/files/20210915_4A474F5015284415.pdfIn PDF document text
- https://vnjhanoi.com/upload/files/zarujodenoz.pdfIn PDF document text
- http://f-okinawa.com/img/tmp/file/13735073325.pdfIn PDF document text
- http://mmsmarin.com/imgimage/file/31701279313.pdfIn PDF document text
- http://ks4073.com/file_media/file_image/file/kafagerinewelusaroduzij.pdfIn PDF document text
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/d2c1bce93b0cb053897f60d6a6360424/19582256334.pdfIn PDF document text
- https://agri-mal.pl/userfiles/file/33809426542.pdfIn PDF document text
- https://blogsma.com/files/36134834243.pdfIn PDF document text
- https://www.padanguparduotuve.lt/ckfinder/userfiles/files/zupazel.pdfIn PDF document text
- https://nanyangtextile.com/userfiles/file/luxukefovagakomudatiwe.pdfIn PDF document text
- http://dodogs.ru/sites/default/files/file/nogurerapulizenas.pdfIn PDF document text
- http://geotersrl.it/file/39241703725.pdfIn PDF document text
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/fd16a70c6a65688b65a065064e2042c0/81582358269.pdfIn PDF document text
- http://inbjnews.com/data/cheditor/0603/files/20251427407.pdfIn PDF document text
- https://hoavily.com/uploads/files/95981053056.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=piggy+go+modPDF link annotation
- 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_off0000e250.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE250 | 19988 bytes |
SHA-256: 6f95254f593635f126c13b2b9f934bb8ac92dfcabea315461153ef48e483a16d |
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font_01_sfnt_off000117ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012fc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FC2 | 9896 bytes |
SHA-256: 6cd0ac6167065979578b268716b931737afa88c95e3f674d5b41fd78c4e631b0 |
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