MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of using link farms for malicious purposes. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious classification. No scripts were extracted, but the structure suggests a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 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://irlanc.ru/uplcv?utm_term=english+grammar+worksheets+for+class+7+with+answers PDF link annotation
- http://ngoinvest.com/uploads/ckfinder/files/49173977236.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a2f02df1a---34648123598.pdfIn PDF document text
- http://byty-pardubice.eu/UserFiles/File/20740467145.pdfIn PDF document text
- https://attack.lt/images/files/24109929468.pdfIn PDF document text
- http://bayanairag.com/uploads/userfiles/files/17538323244.pdfIn PDF document text
- http://csc021.com/userfiles/file/20210626062405_2i681h.pdfIn PDF document text
- https://31app.com/userfiles/file/53570048066.pdfIn PDF document text
- http://t-p-fortune.com/userfiles/file/gogivusezuvevumasurab.pdfIn PDF document text
- https://greenlakepaint.com/ckfinder/userfiles/files/xufapawasudizozifosuriza.pdfIn PDF document text
- https://www.studioline.ie/ckfinder/userfiles/files/xazitud.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/dc543353719f82aa246c61eb38a0faf3/sivirusamawovelezol.pdfIn PDF document text
- http://handbook.hu/upload/page/file/59221765550.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bb2647dfd45---nejalosobixafiraxenit.pdfIn PDF document text
- https://alasclub.gr/neuro/ckfinder/userfiles/files/sutazugejijawesovikimi.pdfIn PDF document text
- https://dondepodemosir.com/userfiles/file/xutod.pdfIn PDF document text
- http://www.cenlafilm.com/siteuploads/editorimg/file/16065637726.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/3bb8e09b2e52ce46dc20842c913e7de4/55915721534.pdfIn PDF document text
- https://tramhuonghanoi.vn/upload/files/fididimugefexa.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/eai75o5ak608auglle7o9edcfo/gugevujojajojeg.pdfIn PDF document text
- http://sys-svinding.dk/userfiles/file/tofame.pdfIn PDF document text
- http://k2plusinterior.com/userfiles/82195384770.pdfIn PDF document text
- http://qapoll.com/2015/vat/upload/files/45708858448.pdfIn PDF document text
- http://krevue.cz/UserFiles/File/22942700107.pdfIn PDF document text
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/b077d3569a764d1f074a50363c9d969a/vefisemefidad.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c64358b94fa---baxiwewixerabulow.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_off0000ed66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED66 | 18288 bytes |
SHA-256: 767a826ffb653241f5d79a946c4800a665231cd00fafb35a726b9ef26e3aea28 |
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font_01_sfnt_off00011c7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C7D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013494.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13494 | 10996 bytes |
SHA-256: f43759c21bdc2f83da1cd4ea24d0412f228ec1c54a0be400e550e5f595476faa |
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