MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm pointing to compromised WordPress uploads and disposable hosting, with numerous embedded URLs. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://nomylo.ru/uplcv?utm_term=to+be+going+to PDF link annotation
- https://umutfm.com/resimler/files/xefoxexikofojomuraweso.pdfIn PDF document text
- https://playindiano1.in/ckfinder/userfiles/files/mowobumugamefadawoti.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/a1b7e6436ea873d4ae53030fbf71f174/81171769765.pdfIn PDF document text
- http://kennycojewelry.com/userfiles/files/202109/1631200654.pdfIn PDF document text
- https://ksmt.edu.np/assets/ckfinder/userfiles/files/zanamunetuxorabotofin.pdfIn PDF document text
- http://bogaarchitetti.it/userfiles/files/benajimewavipusiluvi.pdfIn PDF document text
- http://ip-malkov.ru/uploads/files/87646685413.pdfIn PDF document text
- http://healhumanity.foundation/userfiles/file/70896432561.pdfIn PDF document text
- http://baikalspring.ru/ckfinder/userfiles/files/godakutogamuxituzikaji.pdfIn PDF document text
- http://cripper.de/media/divutil.pdfIn PDF document text
- https://kor.mycultureis.com/FileData/ckfinder/files/20210928_25618228AE6535F2.pdfIn PDF document text
- http://ahnil.com/userData/board/file/61501831989.pdfIn PDF document text
- http://parentini.it/userfiles/files/dunitizatol.pdfIn PDF document text
- http://nhungbaithuocnam.com/img-tvdl/files/fotarumaxanipafavu.pdfIn PDF document text
- http://xn--80adic7alej3d.xn--p1ai/userfiles/file/sitasalor.pdfIn PDF document text
- http://af.ssla.ru/images/fornews/files/27110481310.pdfIn PDF document text
- http://topoint.net/userfiles/fckFile/20211005120601.pdfIn PDF document text
- https://andrejc.si/files/file/gotilegewatitoladegibomaj.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/16e38569f4a7a221683a772784f3d090/79145297724.pdfIn PDF document text
- http://travellightnepal.com/userfiles/file/14595901942.pdfIn PDF document text
- https://takarasushimn.com/userfiles/files/94354873555.pdfIn PDF document text
- http://poultech.net/d/files/dotez.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613f23dacf466---44326219664.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_off0000d18d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD18D | 9912 bytes |
SHA-256: eceff363bed8b62efead4dd3d6abe53ac8b3edc742f07a359ac21424e86d326c |
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font_01_sfnt_off0000e788.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE788 | 22568 bytes |
SHA-256: c8f58af440d622075c5b61cac3f48c19ac66f963811af4bf961d1f8e602df5a3 |
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font_02_sfnt_off00012188.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12188 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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