MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, indicating a tactic to obscure the true destination of the links. No scripts were extracted, but the overall structure and URL analysis point to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://kco.su/userfiles/file/29749894529.pdf In PDF document text
- http://eros-arena-reutlingen.de/eros/userfiles/file/sorixamutediwegajojixoxo.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/40c8f2b0435a94145095ef76fee567b7/govapunu.pdfIn PDF document text
- http://nt-module.ru/ckfinder/userfiles/files/rojelum.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/luxetaxafilog.pdfIn PDF document text
- http://rayzerfamilyreunion.com/clients/0/08/08e2d5bcffca37c2e1a82d364f4296c6/File/guvefolejugabikavatakofa.pdfIn PDF document text
- http://assistance.uz/images/shared/file/wovipularefitodebi.pdfIn PDF document text
- http://gewoongroen.eu/app/webroot/files/userfiles/files/vatuxa.pdfIn PDF document text
- https://afra24.com/basefile/afra24/files/62253224610.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087ecacadc97---6280616353.pdfIn PDF document text
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/1b70ed9176c8e321f840bc5d6069b560/sesuwak.pdfIn PDF document text
- http://adirondackseafood.com/ckfinder/userfiles/files/21709657360.pdfIn PDF document text
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611da25ae8208---keromowasev.pdfIn PDF document text
- http://amon-syotengai.com/userfiles/file/1542620339.pdfIn PDF document text
- https://at2-turbo-j3t.com/contents//files/75473805325.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9a65f22e521b3a044dfef946acf2343c/70085847381.pdfIn PDF document text
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/b9fa0bcbde852ff3eb4e5814adadf461/tavetevet.pdfIn PDF document text
- https://www.stjohnhomelessshelter.org/wp-content/plugins/super-forms/uploads/php/files/32225648a58da8e204d9d869775b0bc4/fifet.pdfIn PDF document text
- https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/9r5k0hhldhilclpig7dtk2hkc5/kidejogupugoroduvazeki.pdfIn PDF document text
- http://acecaalcoy.com/userfiles/file/50053555099.pdfIn PDF document text
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/7b4db8588d7b4a82df3ab6f414a8044a/wileriworati.pdfIn PDF document text
- http://asbufestival.com/uploads/FCK_files/file/81995056329.pdfIn PDF document text
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b43725e308b---zofifububelavuromiv.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078e4da6f701---datokedasemaj.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=casebook+on+contract+law+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d249.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD249 | 19828 bytes |
SHA-256: 57924ca471991dd086083127fc1783f583a0a023b6910c9072f5f034f09c9d74 |
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font_01_sfnt_off0001039c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1039C | 10872 bytes |
SHA-256: 472d21c0d30df1e2018d632cefe2c4ff7e5dd569d4e6fabd84144ecf9a645b9f |
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font_02_sfnt_off00011ccb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CCB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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