MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a high number of external links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to distribute malware. The presence of a 'download button' heuristic further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9825
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 http://x-site.by/upload/editor/files/30353000504.pdf
- http://slp61.com/clients/e/e2/e296dcecfd7d10ffef0cc83fef253c72/File/nelotigujuve.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c30c633f3---49823321541.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/77d30e1d40c8aec4a6bd671ed3ecd83b/gunibaw.pdf
- https://canevastoilestjean.com/upload/editor/file/32909536319.pdf
- https://andrejc.si/files/file/63040905397.pdf
- http://musorcentrum.hu/files/article/file/makokojinigedofevev.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/mnnsm1257bk89j2r77sjqp9rv5/takibubetufozofife.pdf
- http://climtech.com/files/files/43782271240.pdf
- http://sarljarry.fr/userfiles/file/52526387630.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160d9cad851c46---17390863345.pdf
- http://futuresbuilder.net/dayafter/uploadimages/newsimages/file/24571171754.pdf
- http://www.odnpoznan.pl/fotki/file/file/38609066420.pdf
- http://porpora.biz/imagenes/imagenes_contenidos///sajulelelixed.pdf
- http://mkconline.com/landmark/ckfinder/userfiles/files/57762395473.pdf
- http://fqcycpa.com/jingkelun/userfiles/files/20210701205831.pdf
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/9thb31fll9iqomn6gvj5g6but5/80755299722.pdf
- http://khiconghoixuancong.com/Khicong/admin/userfiles/file/nevuzetuf.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c42031bd87b---62174177628.pdf
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/6f38390e45a59f1589fca9ab980e8d72/27315741767.pdf
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/d3c9b8e51a12c6db6a7ee05c4350422b/fepelidodisi.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d957ed8d2---bagosufoj.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/f9o3divv1ath54s7cioacls892/1720167890.pdf
- http://brandnewgoods.net/userfiles/file/30565435903.pdf
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/jp1798edkiuq93s51c8ljtjed6/mowanalonusobolurafepubi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=check+mark+on+keyboard
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f029.bina33d725dbe22d85d58dc0be8fdcc7539f0f29993f382b39d51b273c17670b9e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF029 | 1844 bytes |
font_01_sfnt_off0000f8d8.bine55c959a51401a8a1db2200856ec6786b093a22c29f5be6910a8932ed94b7db9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D8 | 17128 bytes |
font_02_sfnt_off000111f6.bin0acf4e213d942491f649398fdd336447d0aa9d30c53b7f29c781923be1bf8e33 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111F6 | 10608 bytes |
font_03_sfnt_off000129fe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129FE | 16792 bytes |
font_04_sfnt_off00014210.bin2bd69195dd303e290df8c591815ae42aec2fe4bd079c280cc14a7c6f5d0131b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14210 | 17520 bytes |
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