MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing a link farm that points to multiple compromised websites, identified by heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM'. The ML classifier and ClamAV also flagged this PDF as malicious, specifically as a phishing trojan. The presence of embedded URLs suggests an attempt to redirect users to malicious content, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 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://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/da569b71094d83828a15ca1e012d141e/faxolijadopolazejuvuro.pdf
- https://smallislandcurry.com/wp-content/plugins/super-forms/uploads/php/files/19bad677bba4a0e76531a337b9f1243d/sokunilerexijaxifed.pdf
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16078024927b89---kejumovanomejojib.pdf
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7337a37e7f---37416333129.pdf
- https://betenrealestate.com/sites/default/files/file/35579235683.pdf
- http://unicorn-furnitures.com/d/files/99820755666.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4c595332a0---korujap.pdf
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/cf42cdf124a13038b1c97f2b6537081d/figowomowarun.pdf
- http://usaoxin.com/userfiles/2021-6/file/pikojujuz.pdf
- http://chromavials.com/d/files/63340684255.pdf
- http://kap-group.com/ckfinder/userfiles/files/dejudobetitadurasotoxovox.pdf
- https://abe-rdc.com/userfiles/file/melaz.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd1538d08b---5142650167.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609c96a0c5035---13817232686.pdf
- http://ebsenglish.net/_UploadFile/Images/file/jatepefo.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/2q4di2g553jbjlpif2kdpim50c/94310387833.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/bdc165d9c028721c3686b3eaf462989d/dedude.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/avfb98d514kvh227nboin3udm3/sirizonakir.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16078b241ea65a---sudedejefije.pdf
- https://mygoaltv.com/ipp/images/uploads/files/28409224809.pdf
- http://global-insurance-broker.de/downloads/vesidipobiwavorujufali.pdf
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ab4daa3d94b---49927212558.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=vomiting+phlegm+in+the+morning
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fbf8.binea1aeda2a4614f36e10eed85e74f9604c6c5dde89996b0d9fd239a3c5fe2b92e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBF8 | 17136 bytes |
font_01_sfnt_off00012860.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12860 | 16792 bytes |
font_02_sfnt_off00014077.bine08c60ec1f0169ed520e7d0adb8b210a9c525747fb626553a677838ca49dd630 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14077 | 10340 bytes |
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