MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of link farming, suggesting the document's primary purpose is to redirect users to external sites. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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://ketchas.ru/uplcv?utm_term=colorless+sulfur+bacteria
- http://rc-modeller.se/images/file///33578018107.pdf
- https://wegofa.com/userfiles/file/vawigirox.pdf
- https://bdaudit.ro/userfiles/file/15492348826.pdf
- http://toshiteriyakiburien.com/uploads/files/24051518505.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/cpkurfqkd0hus4ir7u3967bko6/mibiripizesukefafor.pdf
- http://essiac.cz/UserFiles/file/sumepawasanopadorep.pdf
- http://studiogallerani.it/userfiles/files/gifejip.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ac26bf2f5ab---15925714694.pdf
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/5407117f27109cd426834ba04a65d0af/24860047699.pdf
- http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607100e14b759---6245768369.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfac4219b57---14265188083.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c4fa3bf3827---81040134571.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/1ddb6380e4c1d965e4083667fc4f0b5f/nepapizabelaxeziroderasaz.pdf
- http://kvbm.org/pds/userfiles/files/41747435660.pdf
- http://barcelonahotel.vn/UpLoadFile/file/29570902583.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160c07ec10b206---gabunosorebezasuleripobo.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/c64fc13418ed3cc4135748e49f4a19d3/60641978490.pdf
- http://peaceinsrilanka.lk/userfiles/file/73818792447.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5e9a9349d---84520861517.pdf
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/coi6vpd7jbfb1jgarbq2dv25d2/donabirikut.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/6033e5f6e5eddec0f9a9bd913af77379/81962148450.pdf
- https://htlexpress.com/ckfinder/userfiles/files/98340845900.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/93e545013cd2468cddcf27f3c227ce71/60630470053.pdf
- http://mobydick-band.de/fckdata/file/57669167410.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_off00010716.bin0acf6d1211faef2a2296c36eac42daf92e1d9360e0c9e90d96854adcc1f04755 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10716 | 10496 bytes |
font_01_sfnt_off00011f28.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F28 | 16792 bytes |
font_02_sfnt_off0001373a.binfadda3d3eb5e8bce103559db1cfce0e7b3bdb64e83778005f7be2faa03bd38ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1373A | 18772 bytes |
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