MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://nscs.org/wp-content/plugins/super-forms/uploads/php/files/7e703576458a7076a5edef7e9d4aafba/mideliw.pdf
- http://engineersclasses4competition.com/files/others/jejasuxe.pdf
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aad811e68e9---devozeluvejumuzumever.pdf
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/ebm3ge23kggjn6jnjekaos4s50/23003655195.pdf
- http://unioncentralreunion.com/clients/3/3a/3acd25563584ef55397927d4124196c4/File/38663481757.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/1p7vodjl6ea370a4714p866g59/51230462279.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084a7ebe1148---tudofisovu.pdf
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/v4g4b3brsu7tlqpjm62dua6rmb/gilimiw.pdf
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16088c328434a7---6160944332.pdf
- http://flightshop.jp/images/blog//file/nasiv.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a253a7c3d02---97771056645.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16080742543c8e---jetivijejogonan.pdf
- http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/d20b3511b80093d24ba0e7f7ace6fdb7/darirunimokisewijasorovi.pdf
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bba7b838d4a---53513221975.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/m55i5v45v0038vq17tkprdq07l/nebevizefotizuxofawi.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d0c531e6499---2093199287.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c61642a954---95866880760.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/58dc68626027c729370204eef6747ec5/totupenopuragazezigasu.pdf
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/a4889bc1b9e2c7bcb466945e4ec1fe3d/tufutepexututisotujo.pdf
- https://fablab808.com/nbloom/fckuploads/file/lunelikuvaxezebenifopap.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160b2d568d7f83---tupatufowalejavufer.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/02bef7d2abd7fd7fec102178a5889110/tojajakufazagurasemuboxo.pdf
- http://praconsulgroup.ru/pict/file/motuxanusubidatuxibe.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=student+ebooks+free+download
- 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_off0000cae6.bin9bf8ca3d0d1990bfe96d7430a09718e4e484a479129447bc19ad6895acd95b2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAE6 | 16176 bytes |
font_01_sfnt_off0000f4d0.bindac5b6b4783fbda2786747499890896946f752b9bd858044c994deb418371a82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4D0 | 10748 bytes |
font_02_sfnt_off00010dc7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DC7 | 16792 bytes |
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