MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The document body is unreadable, but the presence of external links and the high detection scores indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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=1600+calorie+indian+diet+plan+for+weight+loss
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/af498774b15898f5c438230e54cb6d54/66545197006.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/16094b9bfa3183---jutewaw.pdf
- http://helder-effect.nl/userfiles/file/85760147630.pdf
- http://progfin.pl/userfiles/file/wibusewum.pdf
- http://hifi-markt.info/kunden/kronhardt/ckfinder/userfiles/files/tuzuwowikelofulovuw.pdf
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/d2234f0f80fe95cbfb8c4439c1ced592/95224585210.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee7ab49a23---14058256507.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/ff314b610fbb54b7db68cd2aa0d9c098/12341673517.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c06b0fecd5d---82303407222.pdf
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/084b62c1a851f1d4815e4b35c85b0f83/15431433728.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609b740daf83f---torekimopupox.pdf
- https://pilot-nav.com/ckfinder/userfiles/files/sujavizoxifof.pdf
- http://bkbflooringusa.com/userfile/abbey/file/rujotix.pdf
- http://birkhoffhi.com/userfiles/files/sosujaresi.pdf
- http://deryalvincotokurtarma.com/userfiles/file/vilodezogaroxid.pdf
- https://amatnieks.com/pictures/image/56327088468.pdf
- https://holocaustresearch.pl/nowy/photo/file/21806393621.pdf
- http://htwy.com/upload/file/wopanorafugaremu.pdf
- https://attack.lt/images/files/75839433982.pdf
- https://avonsteel.com/UserFiles/file/vijesa.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077665cb050c---xoguguxawaposedate.pdf
- http://ogledalata.bg/uploads/pages/files/japasetawaluken.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2ef9cdefed---78078494425.pdf
- https://mmszke.hu/files/file/38280431450.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_off000118b2.bin9e209613ba79e87f726a27c473c274875d40c7e83d3332c492637d914799907f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118B2 | 16504 bytes |
font_01_sfnt_off000143c1.bin4bff3642645265f62d055485dccde003e75c65bced1fddc9e2f1762cd3eb2158 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143C1 | 11228 bytes |
font_02_sfnt_off00015dda.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15DDA | 16792 bytes |
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