MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous external links, many pointing to compromised CMS upload directories, suggesting it's part of a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and appears to contain metadata rather than user-readable content, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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://smidgel.ru/uplcv?utm_term=what+is+bijoy+bayanno+activation+code PDF link annotation
- https://travelinnsuites.com/nbloom/fckuploads/file/86116828302.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cdefc1b62c---777299870.pdfIn PDF document text
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/4bnt33884fmcllrvo4v2bvo93d/25977928759.pdfIn PDF document text
- https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f2b8ac053---50000790440.pdfIn PDF document text
- http://ekolojikweb.net/upld/userfiles/file/17404978572.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/dbl3riu3uf8ncd6hpia0f39ehg/58875282402.pdfIn PDF document text
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/qv2qn7ki6e4m6hedl55oa1jq17/tosidib.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/2jim8vhv1ctq7ju69jccjprpt6/58745005318.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160879354e9196---gedop.pdfIn PDF document text
- http://dyglas.com/userData/board/file/45631215332.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/66981975705.pdfIn PDF document text
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/07c0e60bc90a37832597908facbb9572/puzoj.pdfIn PDF document text
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/0b56c2cf6dca2b6911ce3aac02cdd456/62537975740.pdfIn PDF document text
- http://altaprecision.com/userfiles/file/kozew.pdfIn PDF document text
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16085e74aea1fe---14111099278.pdfIn PDF document text
- https://corghialberti.it/file/remiba.pdfIn PDF document text
- http://re-view.online/fckFiles/file/muvadalopama.pdfIn PDF document text
- http://alumcity.ru/userfiles/file/50397993506.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d6a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6A5 | 5288 bytes |
SHA-256: 6f2517bd091d29f1d2a09a6edc5074f2805efeb106dc8d5b4a235b11e4f32494 |
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font_01_sfnt_off0000e8ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8BA | 10512 bytes |
SHA-256: 77055a89575ef03a1807dc9c5ef133d1d8f1bd3734ee77d8d23043fd7ea5dd9b |
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