MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous links to compromised CMS upload storage, suggesting it's part of a link farm designed to distribute further malicious content. The document body is heavily obfuscated, but the presence of embedded URLs and the overall structure point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613550bccebb1---71028111959.pdf In PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161376a68239e6---4743275920.pdfIn PDF document text
- http://architects-desk.com/uploadsfile/13873026036.pdfIn PDF document text
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/458984c86226aa309af48d5f62b71375/63328674476.pdfIn PDF document text
- http://ncfc.com.tr/ckfinder/userfiles/files/kunibajemono.pdfIn PDF document text
- http://gojjang.com/uploads/files/kujolatezolinatojalezoto.pdfIn PDF document text
- https://taechoclub.com/FileData/ckfinder/files/20210904_093B71CF2B12F910.pdfIn PDF document text
- http://pogotowienaukowe.com/Upload/file/1702695511.pdfIn PDF document text
- http://cioccolatogallucci.it/userfiles/file/muvaxo.pdfIn PDF document text
- https://bangvetthuong.com/luutru/files/jozovaram.pdfIn PDF document text
- https://manage3.realtourvision.com/rtv/ckfinder/userfiles/images/files/41015455156.pdfIn PDF document text
- https://elesud.it/img_pagine/file/sipusewovewixelupe.pdfIn PDF document text
- http://www.mmalappeenranta.com/tiedostot/files/26585916419.pdfIn PDF document text
- https://rosedreamholidayhomes.com/ckfinder/userfiles/files/40151413730.pdfIn PDF document text
- https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/85669877719.pdfIn PDF document text
- https://xn----7sbeo1acdy3adh.xn--p1ai/userfiles/file/xewoloziboduwujak.pdfIn PDF document text
- http://phunphu.com/userfiles/file/11064295912.pdfIn PDF document text
- http://inciboya.com/resimler/site/files/nefuwavopuketepikuzu.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb7d31e494---36610362667.pdfIn PDF document text
- http://dga.gr/ILC/img/file/20918312161.pdfIn PDF document text
- http://www.ppk-kp3k.kkp.go.id/ver2/extra/ckfinder/core/connector/php/media/ckfinder/files/dajaxagebinokemoxe.pdfIn PDF document text
- https://zenmobile.in/jaipriyart/uploads/files/nurewotupoxijufug.pdfIn PDF document text
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/161358ad2d9b70---nibogolovaxotuzoz.pdfIn PDF document text
- http://vectorma.ru/uploads/assets/file/58504327239.pdfIn PDF document text
- https://mediaskills.rs/files/13012872584.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=isometric+paper+a4+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_off0000e153.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE153 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f96a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF96A | 10660 bytes |
SHA-256: b90b5bab0823892aa645c399ab75994ab32746586209bd881f0674b81daf0e2e |
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font_02_sfnt_off000111e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111E8 | 18028 bytes |
SHA-256: df4fe987c1f82511d22d1ea82579848811be161a10d90ee06728e322e2c4638b |
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