MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm or redirection scheme. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a deliberate attempt to manipulate search results or host malicious content. While no scripts were explicitly extracted, the nature of the embedded URLs and the overall detection suggests a phishing or malicious redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160acd3616f205---vemigolonivubisi.pdf
- http://cuatro-pr.org/sites/default/files/file/83032638795.pdf
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16072e5b652961---78278514260.pdf
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/806ebb45292fe3c3f5f96097b22d8338/xovatuve.pdf
- http://careerdynamic.com/clients/3/3d/3d9dba0a3645e5854abf1db7654b9c86/File/59736295366.pdf
- https://tidurmalam.com/contents//files/bolaxefelonuzipozubo.pdf
- https://mercerapparelss.com/userfiles/files/4126331720.pdf
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/3nr1kef5qc8di7psincki4r0e3/22485914544.pdf
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160deb644a824f---49571904549.pdf
- http://thessalonikiflights.com/files/files/nigopikirabunek.pdf
- http://dulichgiahy.com/upload/file/lakapiwugeferewebor.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609882ae7dcb1---98825158472.pdf
- http://aklond.com/UploadFilesfile///2021050316220828.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/27ab6ac26c795edb1648cd918a17c0e8/44984941588.pdf
- http://www.mueblesgamez.com/ckfinder/userfiles/files/36982918969.pdf
- http://rajskiewakacje.pl/userfiles/file/53018354956.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608d07b09f35e---bemubukadonesupagij.pdf
- http://orchid-daikanyama.com/userfiles/file/3562448539.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/pabgcoqfhnre09cthplhbk19pu/29209228903.pdf
- https://bangiyaparishadtoronto.ca/bpt/editor/uploadfiles/23283455744.pdf
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16079ca1d6e31a---58627598534.pdf
- https://superchills.com/userfiles/file/90183312078.pdf
- http://phuocthuan.vn/images/pic/file/43197370327.pdf
- http://rauvuonsach.net/images/uploads/files/pozuvipuposu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=beef+buns+n+paradise
- 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_off0000cf45.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF45 | 16792 bytes |
font_01_sfnt_off0000e75c.bined9245d3366556af7dd173201c20b8b1607287641478014dd62d9f230c4db306 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE75C | 10520 bytes |
font_02_sfnt_off0000ff2e.bin8a4765bf37174f2898ca3cd6ba701d569f427302473e656456bccb9894c9c55d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF2E | 16900 bytes |
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