MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as 'Pdf.Phishing.Trojan'. The file contains a link farm pointing to compromised WordPress upload storage and other disposable hosting sites, suggesting an attempt to redirect users to malicious content. The presence of numerous unknown URLs indicates a broad effort to distribute or host malicious files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://anhuifan.com/upload_fck/file/2021-5-12/20210512213145586042.pdf
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/081ebaa8bde18103ca7b30e735bec3d0/bejejeweki.pdf
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/b95030c13fc13f31addbf14558b6cd4e/rilolera.pdf
- http://ippinnudon.com/uploads/files/sovubi.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/lc0kstg0jfdq9nscsjr6a841s4/litoxuvekite.pdf
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/4b8r877h4sfebmtogj5s70gj7f/9651269163.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d946727cb8f---rosilazew.pdf
- https://heritagecambodiatravel.com/userfiles/file/35233463329.pdf
- https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/4c1c53e8def8233ab36308a6ea900bd9/wodovejerigakiwenaluze.pdf
- http://olgapolyakova.com/files/files/fijafobinazitosaxunutifa.pdf
- https://dreamscapes.ca/dream_scapes/userfiles/files/48529546005.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/16092efb0a2a6f---dexalo.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b89f76e01ea---12531122385.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b3884ae7176---retuwopume.pdf
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/5317756487.pdf
- https://szabobuszrendeles.hu/files/files/doziburil.pdf
- http://evolutionchonburi.com/userfiles/files/guzobidanujebebejuzed.pdf
- http://portalcom-b2b.es/img/user///file/_0980616001619772547.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=importance+of+soil+profile
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/ae3c3521f52d55e622666b260bb40bf1/50280615257.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_off0000e0af.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0AF | 16792 bytes |
font_01_sfnt_off0000f8c1.bin4a241e14008ceb485fa6f4e0976c114c84b99ea0a5dd83415194ad6487a748d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C1 | 16144 bytes |
font_02_sfnt_off00012283.bin22c07342bc75bbd03134756261ccab91ef19685b91d3a8fae836b97af54b9772 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12283 | 10592 bytes |
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