MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to numerous external URLs hosted on potentially compromised or disposable domains. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://foodchemsino.com/d/files/vejijufekedimuxazo.pdf In PDF document text
- http://meble-tk.pl/userfiles/file/53773548486.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/73780259931.pdfIn PDF document text
- https://rentcar888.com/uploads//files/202108120046531406.pdfIn PDF document text
- https://esz.jp/img/editor/files/27883726316.pdfIn PDF document text
- http://drwatsonsr.com/clients/2/2b/2b9a0cf27321ceab3a47fbd10bf94d34/File/bajukedakojuxufu.pdfIn PDF document text
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/fpt7r11psb0kf4r9ei407t6q59/nubes.pdfIn PDF document text
- https://balajihighfields.in/userfiles/file/24958959294.pdfIn PDF document text
- http://csc0535.com/userfiles/file/20210619191747_og8kgu.pdfIn PDF document text
- http://huiking.cn/uploads/file/200815464624.pdfIn PDF document text
- http://ddaengshop.com/ckupload/files/50001915555.pdfIn PDF document text
- http://xn--80aafbkbafwdti1ahihccrg.xn--p1ai/pict/file/76544990760.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/69794413835.pdfIn PDF document text
- http://1982thsreunion.com/clients/a/a8/a85c6617a93da1462bf6c3e7dda9c043/File/wababemazoj.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/de8300eb1eb0c0830a621aee27c2f60a/wubupawunaduxipujemu.pdfIn PDF document text
- https://triosms.com/userfiles/file/dupibemuto.pdfIn PDF document text
- https://hbfilm.ca/resimler/files/femixija.pdfIn PDF document text
- http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf02825523---94667016377.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/1c2ce8173db2d69d0931cd65c3e9553e/xovurisagorimew.pdfIn PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090cc3933a7a---77130505797.pdfIn PDF document text
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f80211044a---digasiweriwuzenabi.pdfIn PDF document text
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609de8b9a81a8---88630409404.pdfIn PDF document text
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/m9u3alvu4o8c8ag144kurmehqf/42766105818.pdfIn PDF document text
- http://7166867.ru/ckfinder/userfiles/files/81521383677.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=wink+connected+home+hub+manualPDF 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_off0000e74b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE74B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ff62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF62 | 10692 bytes |
SHA-256: f2ad3737d33eed046f899d03c9f858a552bb6dc6e578217add96f0448014861c |
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font_02_sfnt_off000117ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117AB | 17820 bytes |
SHA-256: 9631b437f27be141d3d880d70e16dc74daa461b6398e5ae27b92d0e4319b5ada |
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