MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to external websites, many of which appear to be hosted on compromised WordPress installations or disposable domains, 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 confidence verdict indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 https://krisoc.ru/uplcv?utm_term=wagging+tails+pet+supply
- http://strategie-online.net/catalogue_dynamique/file/64764912923.pdf
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/lf9eog3g8pcq1mt3hel0gu4c87/14655560578.pdf
- http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607f05c6e2126---wikobaxududi.pdf
- http://119hero.kr/userData/board/file/nufefes.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a948ad4be46---dofolinam.pdf
- https://planet-for-events.de/userfiles/file/dugunejuzej.pdf
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce57239cd3---43778729052.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16076ab77be21d---saguguk.pdf
- https://agrilaui.com/userfiles/file/68973602777.pdf
- http://duepassidalcentro.it/userfiles/files/retowuvepuriwideb.pdf
- https://pcstaiwan.com/ckfinder/userfiles/files/6000167877.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/61141249c9fa2ae3260300b67fd934aa/12641460976.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d7d9daa471---dikusupudaxigaru.pdf
- http://nextgenship.net/upload/file/20210525162197131814.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083a8ed73053---vomepejuponef.pdf
- http://tevukasveza.lt/ckfinder/userfiles/files/56294379430.pdf
- http://briarcliff70.com/clients/874901/File/gurugowa.pdf
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072bb20bb43e---mamokoxew.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b6e3adbb6b5---kaguxunebabuwokigularo.pdf
- https://mamo-tato.ro/userfiles/file/22056833509.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084e6e010810---vodiwi.pdf
- http://footstepfloor.com/upfiles/files/nabezijugewu.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_off0000ba89.binebb8f6d997b9702337c82e9910ac46024c197826a28b239eff59662e340417d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA89 | 17408 bytes |
font_01_sfnt_off0000e841.bin94327f2c42ef9f3308cfb6dd44d2491397832da9df333c100a1f5c4f91fb5e8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE841 | 10416 bytes |
font_02_sfnt_off0000fffb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFB | 16792 bytes |
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