MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains numerous embedded URLs, many of which point to potentially compromised websites or disposable hosting, indicative of a link farm. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this is a tactic to distribute malicious content or phish users. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://allytemp.ru/uplcv?utm_term=attack+from+mars
- http://xn--80aer5aza.xn--19-kmcm3c.xn--p1ai/ckfinder/userfiles/files/jelafu.pdf
- http://elisa5888.com/shopadmin/upload/files/49841464207.pdf
- http://cimkezes.hu/uploads/ckfinder/userfiles/files/84587240828.pdf
- http://godsownproperties.com/userfiles/file/vojuvezoxewezekimu.pdf
- https://jpt.mysmartedu.com/uploadimages/files/tuwevatalujupifipupanakux.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615380a8876a7---fuvokizomokapexiwegapos.pdf
- https://tabularasa.lv/sites/tabularasa/uploads/documents/files/65080152577.pdf
- http://associazionemillesogni.it/userfiles/files/geguraxavup.pdf
- http://franceplus.fr/userfiles/file/58831838168.pdf
- http://pass38.com/images/contentimages/files/71683442924.pdf
- https://autosaloncenter.com/uploads/file/50474833346.pdf
- http://gocreate.termall.pl/upload/fck/file/27615053506.pdf
- https://alharithiforcameras.com/ckfinder/userfiles/files/nenutenijututelozav.pdf
- https://a-1commercialkitchenservices.com/ckfinder/userfiles/files/35264767963.pdf
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614325b415af5---mimetejuxetikeg.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615896b9b002b---lawapojuda.pdf
- http://bjjiffy.com/upload/nabiguweduzipoj.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/5iu2h7ptgrbbhp9s04sk4bmfn2/88030687638.pdf
- http://beerskiboot.com/img/upload/file/numome.pdf
- http://edilcfcostruzioni.com/userfiles/files/5271332536.pdf
- http://numismatika-nbkpdy.cz/userfiles/file/xuponazemudojuwijuled.pdf
- https://latework.cz/soubory/jirurasikapot.pdf
- http://izeninfo.net/admin/upload/files/70150228987.pdf
- https://grancom.by/upload/docs/2507439090.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_off0000ae41.bind4e59e269fd56193b5d0de512b5dc3bbbaa1af7291c0a4ad8efdaeec9b650510 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE41 | 10196 bytes |
font_01_sfnt_off0000c53e.bin889e6fa850d342c6366db365808bd0aff0291e9a0c093ce5143cfcec8ee1b4ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC53E | 14812 bytes |
font_02_sfnt_off0000ea38.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA38 | 16792 bytes |
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