MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to external resources, many of which are hosted on disposable domains and appear to be part of a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as Pdf.Phishing.Trojan. The heuristic PDF_RANDOM_URL_LINK points to a suspicious PDF file, suggesting the document is a lure to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 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 http://fuyu.010bi.com/ckfinder/userfiles/files/domulepit.pdf In PDF document text
- http://cdkkck.com/uploadfile/file/20210916042154.pdfIn PDF document text
- http://chongros.com/userData/board/file/8602638198.pdfIn PDF document text
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/cda6a4520388c4d93b84935afc7e01fb/xubesurifabumipafitizowe.pdfIn PDF document text
- https://aucordechasse.fr/vosImages/58652775387.pdfIn PDF document text
- https://royal-art.pl/uploads/userfiles/files/kikatukajaxigurulebawip.pdfIn PDF document text
- https://sklepbonus.eu/userfiles/file/14736144011.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/29193398553.pdfIn PDF document text
- http://detaycopymatbaa.com/userfiles/file/87443763891.pdfIn PDF document text
- http://prefinancovaniehypoteky.sk/res/file/14701812776.pdfIn PDF document text
- https://moulindelarroque.com/userfiles/file/49400769467.pdfIn PDF document text
- http://villabrown.it/userfiles/files/35394889051.pdfIn PDF document text
- http://abwingssuffolk1.com/uploads/files/jabosotofinu.pdfIn PDF document text
- http://njxinbell.com/upload/files/91585368499.pdfIn PDF document text
- https://tidymoney.com/ckfinder/userfiles/files/85209735248.pdfIn PDF document text
- http://ambulatorioveterinariosantanna.eu/userfiles/files/84732598754.pdfIn PDF document text
- http://thepducphat.com/upload/files/bugizulosezinup.pdfIn PDF document text
- http://saovietgroup.com/upload/FCK/file/34519359656.pdfIn PDF document text
- http://connect-senior.ch/uploades/userfiles/file/dikuxa.pdfIn PDF document text
- http://niengrangchuyensau.com/upload/contentFile/file/40692449207.pdfIn PDF document text
- https://vroa.pl/chplusfiles/file/50164669224.pdfIn PDF document text
- https://femagnet.com/upload/edu/article/file/saxixorazumi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=articulation+apps+for+androidPDF 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_off0000e5e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E6 | 18056 bytes |
SHA-256: 98ca89cf6283f642386f24a198f3b4c9749360117191dc1f382d9ef2c74b9da3 |
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font_01_sfnt_off000114ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114CA | 10564 bytes |
SHA-256: 70569e184f98a37bcd74ae60f3b34a48f83f4b67a099499d91a3d39b101f7a21 |
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font_02_sfnt_off00012cff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CFF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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