MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document that exhibits characteristics of a password-protected archive lure, a common tactic to evade security scanning. It contains numerous links to external PDF files hosted on compromised websites, suggesting a distribution mechanism for further payloads. While no scripts were directly extracted, the presence of PDF links and the ML classifier's high confidence score indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/05b5d739bfb50c65d960a532b4189a18/17052357475.pdf In PDF document text
- http://sntaviator.ru/ckfinder/userfiles/files/21656579064.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b89ce351d1c---bosujonajepomewonafukava.pdfIn PDF document text
- http://topas.lt/userfiles/file/sovajinodewebazarakopokus.pdfIn PDF document text
- https://avonsteel.com/UserFiles/file/kimowijamagewibupokozex.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160c288f59c857---84103893577.pdfIn PDF document text
- http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609c51bee0e32---72102563259.pdfIn PDF document text
- http://flexa.cz/docs/file/2634792126.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b622c2a436---rutexalupokefoji.pdfIn PDF document text
- http://kahounova.cz/userfiles/file/35066156315.pdfIn PDF document text
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/2642a6290021453bf63c9d9855b61602/11873193160.pdfIn PDF document text
- https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/taqo33pm6643q89toufh1ism31/59480880361.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/ee7733570160a0627437ccd356987b7b/21041683622.pdfIn PDF document text
- http://krevue.cz/UserFiles/File/86725282654.pdfIn PDF document text
- http://vidol.nl/userfiles/file/zekifusizumakuramep.pdfIn PDF document text
- http://fontanarosaserigrafia.it/userfiles/file/3129387002.pdfIn PDF document text
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cd29dae56f4---60246435713.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a83644bd82---momipipajumosozanoferuze.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/9saahr1bu0ajlpphn4jbkfg4l1/nobozibozovadovetagematok.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a69679cce---xototekadopaziralizesonod.pdfIn PDF document text
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/v52kq5svcf0ehidtmpp28u0107/75601083631.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3c74e57629---zidevikebexixobiviliguvu.pdfIn PDF document text
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/krahm6up0ti2n0cl7hjd3k0m16/wurenupigowelopimoj.pdfIn PDF document text
- https://alutat.com/data/file/2780640485.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=visual+basic+mcq+questions+and+answersPDF 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_off0000e4c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fcda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCDA | 17620 bytes |
SHA-256: 616b283ba773916605903d8f7c96afc47ada3039cdd0dd1e512c14a04f913068 |
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font_02_sfnt_off00012ab8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AB8 | 10972 bytes |
SHA-256: d26444ff4f01ed400b42c160c596fdd0a0dbb59161574b904cb25934116befb7 |
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