MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm designed to redirect users to potentially malicious sites. Multiple heuristics indicate the presence of external URLs, with one specifically identified as a link to an algorithmically generated URL. The PDF structure and numerous external links suggest an attempt to direct users to phishing or malware hosting sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://huntic.ru/uplcv?utm_term=at+the+dark+end+of+the+street+pdf PDF link annotation
- https://signika.pl/Upload/file/votig.pdfIn PDF document text
- http://proclima-membranes.ru/userfiles/file/mijosu.pdfIn PDF document text
- http://udaybharat.in/ckfinder/userfiles/files/gowuwuweketinugu.pdfIn PDF document text
- http://congtyvima.com/images/Download/65063976349.pdfIn PDF document text
- http://kolbiko.com/images/uploads/file/tetuwaforiwuniniwipibuja.pdfIn PDF document text
- http://learningkey.org/userfiles/pakerasasawamosag.pdfIn PDF document text
- http://pokemom2.com/uploads/files/kizuxow.pdfIn PDF document text
- http://fresh-j.info/images/uploadedimages/file/mipulasujezasedo.pdfIn PDF document text
- http://gsxr.hu/userfiles/file/96930490777.pdfIn PDF document text
- http://bsa-billiard.by/images_from_html_editor/file/fudanibusobivo.pdfIn PDF document text
- https://nangluongvada.com/uploads/files/mivetosinewapigexo.pdfIn PDF document text
- http://sportschoolindex.nl/images/uploads/79070298629.pdfIn PDF document text
- http://ambulatorioveterinariosantanna.eu/userfiles/files/12593899795.pdfIn PDF document text
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/29234117140.pdfIn PDF document text
- http://hhoasis.org/app/webroot/img/fck/file/25994140028.pdfIn PDF document text
- http://nitecoreromania.ro/files/file/jitolidanedabelipis.pdfIn PDF document text
- https://kaptenhoki.net/contents/files/fenaduralinobuvemut.pdfIn PDF document text
- http://abwingsbuffalo.com/uploads/files/9734784725.pdfIn PDF document text
- http://bahtiyardishekimi.com/fckfiles/file/80231746156.pdfIn PDF document text
- http://aiaato.com/FileData/ckfinder/files/20210911_6140120F418F6A0E.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16140c048d1fa9---32048715570.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135972054db8---xurobexosuf.pdfIn PDF document text
- http://csc0898.com/userfiles/file/20210910195512_yhnpy4.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_off0000dba9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBA9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f3bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3BB | 18408 bytes |
SHA-256: acb433debb5e076847aaa628cb06184807e36ab077cff98acd297f9aee361628 |
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font_02_sfnt_off00012379.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12379 | 10528 bytes |
SHA-256: ab86ca29933683305ba6a4f027028eb7eb3a99632762c6f794c700b45c76611e |
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