MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a phishing or malware distribution campaign. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of a URL with 'google+play+app+download' in the UTM term indicate a lure to trick users into visiting malicious sites. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://medvor.ru/uplcv?utm_term=google+play+app+download+for+apple
- http://marinaxaraes.com.br/ckfinder/userfiles/files/fewapotewopaleduda.pdf
- http://tucsokszekszard.hu/images/news/file/gevamowusiwukoletafopeva.pdf
- https://singhaniabrothersltd.com/ckeditor/ckfinder/userfiles/files/zuserisegavup.pdf
- https://sushixusa.com/userfiles/files/4603328672.pdf
- https://dazhonghua1688.com/ckfinder/userfiles/files/texifipesotasajanebiz.pdf
- http://kovacsoltvaskerites.hu/images/file/lesewipugirudimesuvo.pdf
- http://goref.ru/files/file/jeluza.pdf
- http://lexuspolymers.com/assets/ckfinder/userfiles/files/58579365130.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/0983e8ec4c5ad613c1b2d0b6af9bc0d8/tovuwuzizadedo.pdf
- https://wineart.online/userfiles/file/36601952849.pdf
- http://globalcenterhotels.com/bot/ckfinder/uf/files/muxunexusod.pdf
- http://oxigensupplies.com/shipinc/userfiles/files/lemawufodo.pdf
- http://www.tobywells.org/media/fckdir/file/39972103845.pdf
- http://cka-shiba.com/ckfinder/userfiles/files/5218862169.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dafcb5f8ae---89227076086.pdf
- http://consol.hu/images/uploadedimages/file/62195776621.pdf
- http://smartwealthhk.com/userfiles/13538859756.pdf
- http://baracenter.be/userfiles/file/fonexoxadatit.pdf
- http://vektorma.ru/uploads/assets/file/23377398012.pdf
- http://finalbrand.cz/upload/file/pukovaxonimifunodojuta.pdf
- http://dnepropress.net/files/file/87514881595.pdf
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16139954fee2ad---kogedilarojufopelemipi.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/161401eef4df49---20211752026.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_off0000db72.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB72 | 16792 bytes |
font_01_sfnt_off0000f389.bin5a22fc4bcd5120602a9b73c3e28ce0ac991bfaaf0fbed13ed6f01dcba24b8efa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF389 | 10552 bytes |
font_02_sfnt_off00010b98.bind4443adb07c54a1509a2e2fb111525448b6e5bd1f305a9c26bf26c4632526435 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B98 | 17424 bytes |
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