MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with many URLs pointing to potentially compromised websites or disposable hosting. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings supports this assessment, suggesting the document is designed to lure users to malicious sites.
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 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://taichielite.com/louis/taichi/ckfinder/userfiles/files/43949421994.pdf
- https://www.ftha.org/admin/ckfinder/userfiles/files/33900548002.pdf
- https://alice-immo.com/userfiles/file/51848338265.pdf
- http://sllight.ru/design/img/upload/file/45894043604.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096014a996ca---74086645241.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8872ee05d2---31417903448.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b521451eb00---44403917043.pdf
- http://smiletoursvietnam.com/ckfinder/userfiles/files/latelifatuwajar.pdf
- https://emons-verlag.com/testarea/cwsCMSlight/media/files/25030126590.pdf
- http://ufnk.fr/app/webroot/files/file/33052625110.pdf
- http://zge-led.com/luodan/images/userfiles/file/bupixejijimipenefunefezib.pdf
- http://thanhnienxp.com/vietkiendo/upload/file/tefojoraxabaxuxeg.pdf
- http://lohs69.com/clients/82366/File/veneboxepe.pdf
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/e5b6719c29b4c89be13d49d0e40b7808/38326016269.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/ci31o43jk408hgm1q6fl89vaq4/87009520685.pdf
- https://swalaya.in/userfiles/file/fumezixudajajalobe.pdf
- https://sonntag-immobilien.lu/userfiles/files/kenawuwefizal.pdf
- http://aotwresort.org/ckfinder/userfiles/files/davepif.pdf
- https://aadharshilaschool.org/userfiles/file/4983701614.pdf
- http://donauwell.at/userfiles/file/juzokunek.pdf
- https://leuphuotcamap.com/uploads/image/files/70419688112.pdf
- http://dentalweek.eu/userfiles/files/31263123865.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=cognitive+and+language+development+in+early+childhood+pdf
- 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_off0000ecb2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB2 | 16792 bytes |
font_01_sfnt_off000104c9.bin3632092251f900034f0da2cf88acbb62976aa8ae3517e44cbd76f091696fa601 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C9 | 11208 bytes |
font_02_sfnt_off00011eac.bin58bb14ee3916782ae14f648c85c4ac33878c986d407711f4392a9f2d0515fe0e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EAC | 17152 bytes |
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