MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and link farm heuristics strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 https://synerhu.ru/uplcv?utm_term=size+zero+telugu+movie+online
- https://takarasushimn.com/userfiles/files/93992660029.pdf
- http://jcpingie.be/public/files/90507282111.pdf
- http://e-park.es/img/uploads/files/18030209396.pdf
- http://pathtojanna.com/userfiles/files/88063521551.pdf
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613438b9db64a---vuniboponanogufob.pdf
- https://xn--b8qxb801j.tw/upload/files/jepot.pdf
- http://htwy.com/upload/file/49072023441.pdf
- http://mijn-nederland.nl/userfiles/file/98554330177.pdf
- http://juentai.com/userfiles/files/wazepewe.pdf
- http://kaies.cn/upfiles/210907005745356268eur2i6.pdf
- http://associatedreclaimed.reclaimedoils.com/userfiles/files/35967781134.pdf
- http://www.anglometais.com.br/adm/Editor/ckfinder/userfiles/files/5238261676.pdf
- http://mateuszkucharski.pl/admin/file/31328767859.pdf
- http://sql110.com/pic/84966604449.pdf
- http://interno-kazan.ru/upload/files/74843849892.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea692d1d52---fuxeze.pdf
- http://ratchadatitan.com/UserFiles/File/69268935260.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146dcbf65014---41423143729.pdf
- https://podimercrm.com/img/files/55905458251.pdf
- http://koreaticketland.com/userfile/file/47992944152.pdf
- http://goodlife88.com/uploads/files/47017535310.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f44fd72106---26993755913.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16134b17199193---98687152597.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613c4ccbd90d7---34452125608.pdf
- http://zs.tom.ru/jsplugins/ckfinder/userfiles/files/37710648836.pdf
- 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_off0000d72b.bine41cb96d8d39bff9e985cc51ce24b81218ad09dc9c47cacfab83ecb6d009b375 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD72B | 17076 bytes |
font_01_sfnt_off000102fe.bin0f4ae0e8211528686d0b480be089c05f0dea2c6362f68fd425cc89a06504ea78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102FE | 10420 bytes |
font_02_sfnt_off00011aa9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AA9 | 16792 bytes |
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