MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to PDF files hosted on compromised or disposable domains, suggesting a link farm designed to distribute malware. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a phishing attempt leveraging external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://abc-tel.ru/data/File/5614879165.pdf
- http://tingchucontrol.com/Uploadfiles/files/20323460125.pdf
- https://partroyfuneralhome.com/partroy/assets/file/52523361479.pdf
- http://t-cso.com/upload/file_folder/file/55900525392.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136fff3a958a---xojotomomirigadelazo.pdf
- http://blackivy.pl/userfiles/file/fijatitije.pdf
- http://form4concrete.ru/pics/cont/file/fariweposeseb.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb56f921d9---15054774036.pdf
- http://digitalqwerty.com/ckfinder/userfiles/files/bixitikege.pdf
- https://szallas-karpatalja.net/upload/nalixugopotokexakowipope.pdf
- http://isspskola.lv/userfiles/files/6996547536.pdf
- http://centrons.com/uploaded/file/361513470613ec1271d447.pdf
- http://lpsa.cz/userfiles/file/jufabiged.pdf
- https://certifiedcollisionrepair.com/home/cert/public_html/ckfinder/userfiles/files/noxapadomibunedopagi.pdf
- http://geombiagioschettino.eu/userfiles/files/kutul.pdf
- http://tiszaladany.hu/upload/file/3212874519.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/28457e37f1794b9b6814954409d2668f/xukerafekirekinez.pdf
- http://jts-electrical.co.uk/ckfinder/userfiles/files/84961867995.pdf
- http://mrs724.ir/basefile/drtiketcom/files/82804774050.pdf
- https://optimuselearningschool.com/learning/site/images/uploadfiles/6053536655.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/05d8a84ecc00b7993003d0e6565cf634/78647942991.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613810417bc96---94324640279.pdf
- https://faresaldabbous.com/uploads/files/situf.pdf
- https://www.mmgrowersg.com/ckfinder/userfiles/files/89404835024.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=protonvpn+download+android
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b43d.binf7e304365fe9e1258ba6a83dee7c57eab555cd2d4c8ffb3cc4ed8413f829a075 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB43D | 10240 bytes |
font_01_sfnt_off0000cb52.binde574f57a8e2082f5d2b339013102493b824bfd28c5bbf518e47f839e813b750 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB52 | 14292 bytes |
font_02_sfnt_off0000eee4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEE4 | 16792 bytes |
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