MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with multiple URLs pointing to compromised WordPress sites. These links likely serve as redirects to malicious or phishing content, a common tactic for initial access via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160916f109edf3---45888950299.pdf In PDF document text
- http://pallenberg-busreisen.de/uploads/files/kokasowo.pdfIn PDF document text
- https://penal-garazh.ru/files/86774876107.pdfIn PDF document text
- https://heks-tech.com/app/webroot/userfiles/files/rizomazopozepaguxirole.pdfIn PDF document text
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/6cafchkme5g8k7sk27jbsnpb1g/xopuravusuvixiz.pdfIn PDF document text
- http://jplus-ag.com/upload/files/BodyFile__60DEAB361F607.pdfIn PDF document text
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/88667d1f893de4274f05e1c8f6cc76a6/6339107957.pdfIn PDF document text
- http://kaitosushisb.com/uploads/files/xowaxukigat.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/b946f271e9f612d995e29cc2c4641c09/pulobujuxusomigipa.pdfIn PDF document text
- http://asfalon.com/__files/file/98843255131.pdfIn PDF document text
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606da1bcd3316---gezizo.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e97ef006cb---28846398006.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/lvfbhsd2sncpr5kddpne1bnr93/wemurazis.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c1772bce6f0---zakel.pdfIn PDF document text
- http://bronia.org/userfiles/file/28974733555.pdfIn PDF document text
- https://eastmanllc.net/ckfinder/userfiles/files/zevokironasaj.pdfIn PDF document text
- http://cheumst.com/upload/fckeditor/file/82777827231.pdfIn PDF document text
- http://arcdesantmarti.com/biocop/Images/images-editor/file/zakobenufebonofasebezavod.pdfIn PDF document text
- https://yuktogel.com/contents//files/13253340684.pdfIn PDF document text
- http://bjjiffy.com/upload/wepimowosimanawukigexum.pdfIn PDF document text
- http://braciszewska-klimek.pl/fck_files/file/43972419940.pdfIn PDF document text
- http://celiapopememorial.com/clients/4/45/45605e685ba8a3b32f56966823665796/File/14331115069.pdfIn PDF document text
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ca8a61f0ee7---69979364989.pdfIn PDF document text
- http://vankouwenenmastop.nl/UserFiles/file/79612959688.pdfIn PDF document text
- https://anmimar.com/royal/userfiles/file/34936842107.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=after+we+fell+apartPDF 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_off0000f818.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF818 | 17528 bytes |
SHA-256: f2831117d708575fa1f14d9fe0d09c5aefda2717801ea9a9ee447946e87a7ae5 |
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font_01_sfnt_off000125ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125EC | 9932 bytes |
SHA-256: 6a4ac1d4b18b984224d6bd667a2ce6a4a677af1ebe57cf4ae39d86db5f3813aa |
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font_02_sfnt_off00013c1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C1F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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