MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a ML classifier and ClamAV detection. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users to potentially malicious content. The presence of a 'utm_term' parameter in one of the URLs suggests a phishing or spam campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://chcial.ru/uplcv?utm_term=sister+location+mod+apk PDF link annotation
- http://duepassidalcentro.it/userfiles/files/sanotekerogikevopexoxoga.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/c4bc5723ed64d30f220ddc7fb02011bd/53892166637.pdfIn PDF document text
- http://kayamedbursa.com/userfiles/file/xajoselesasarevukov.pdfIn PDF document text
- http://cuacuonnhanh.vn/Images_upload/files/60833140610.pdfIn PDF document text
- http://bluebiz.kr/userData/board/file/25213238992.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136b2bdd7cad---xusefuwaninufemefaro.pdfIn PDF document text
- https://www.zochrot.org/ckfinder/userfiles/files/xuxedowa.pdfIn PDF document text
- https://iwistw.com/upload/files/44328177522.pdfIn PDF document text
- https://divetechmarine.com/contents/files/364432074.pdfIn PDF document text
- http://around-sicily.net/userfiles/file/kofilakudagoreb.pdfIn PDF document text
- https://jagamimpi.com/contents/files/60334716458.pdfIn PDF document text
- https://tw-itemaos.com/ckfinder/userfiles/files/gapogopazurufadisupi.pdfIn PDF document text
- https://dunaweb.co/bg_image/files/fazil.pdfIn PDF document text
- http://winfielddeli.com/ckfinder/userfiles/files/95728260535.pdfIn PDF document text
- https://grup-insaat.com/userfiles/file/70652911338.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135d1ff349d1---depixano.pdfIn PDF document text
- https://mobilaide.com/upload/editor/file/45122159230.pdfIn PDF document text
- http://midesignvn.com/uploads/files/nezugoluberewajozujepe.pdfIn PDF document text
- http://chochosanencino.com/uploads/files/lisakon.pdfIn PDF document text
- http://ivankrivanek.com/userfiles/file/muvaxenu.pdfIn PDF document text
- http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/pusugov.pdfIn PDF document text
- http://mbjarrahi.com/UploadedFiles/New/file/79157522239.pdfIn PDF document text
- https://kingwaterpure.com/ckfinder/userfiles/files/zeratolavajiluburezawivix.pdfIn PDF document text
- http://originalavto.ru/userfiles/file/rivolosedijodujabikirujo.pdfIn PDF document text
- http://birizgardenhotel.com/userfiles/file/57986796573.pdfIn PDF document text
- http://purofirstli.com/userfiles/files/pokipotamofagewogodixun.pdfIn 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://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_off0000bb9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB9E | 10840 bytes |
SHA-256: a14a1b8983b216fdc9285ee45447413f06c3b0438a4380fe15c8beb4e4dfeef5 |
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font_01_sfnt_off0000d48e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD48E | 19540 bytes |
SHA-256: 3742002dcc9dbe3680ae1e9b5df8ddcbc455898e44ab3ab7857f3ac65d5d7728 |
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font_02_sfnt_off00010857.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10857 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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