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 as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. It contains numerous links pointing to compromised WordPress upload storage and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and compromised CMS upload links indicates a likely phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://infrive.ru/uplcv?utm_term=why+do+you+get+ketoacidosis+in+diabetes
- https://immobiliaresancarlotrieste.it/file/ridosovu.pdf
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/16077b32619b05---pemunadulisik.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070332f4e1c0.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/lkbqg2tevcfuv55dos9usgd505/15480572467.pdf
- https://sasalidayanisma.org/uploads/file/majad.pdf
- http://allamericannursing.com/userfiles/file/72804394754.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ae271e930f7---39393292877.pdf
- https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/e476540b8c476404017143fb070ba342/3966177525.pdf
- http://wawa757.com/uploads/files/rozenexexipesa.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/6c78ba9fa160ea209a6f671e9a165f6d/33494021190.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1609df7c69b06c---biperemusejalivizikemejas.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ba88d96b0f3---lilexot.pdf
- http://curry-box-deluxe.de/userfiles/file/wosovidisaf.pdf
- http://stlukesmn.org/clients/17773/File/zibomozano.pdf
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/ea4e50966eaa72c254bd4dee66fd85f1/14199391976.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/5b39fcf4e840ecb9b0a149247c798686/tubofupukobuv.pdf
- https://crownprolaw.com/userfiles/Proj_Name//files/wozifusoxeputugojiradexi.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099a1b0a6ad1---37751821733.pdf
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c31d832a49b---74572096335.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/i57rv20ikba6ns7r8jhlbtiskq/sumelanuditujatobunedab.pdf
- https://vayamcs.com/content_files/files/19936025277.pdf
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16089a9e5384d4---tawexevan.pdf
- http://teresachild.com/upload/files/sixumavemasesapidap.pdf
- https://faceless.me/userfiles/files/2757690193.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_off000100b8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100B8 | 16792 bytes |
font_01_sfnt_off000118ca.bin8186ca40f49f5d54b9beb303cf7e88d5d33be8303c07f189ddcf7f3b5b38abae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118CA | 16952 bytes |
font_02_sfnt_off00014467.bin03cfa4f75fdfcfa54500fea5781ce9b7f29cf133e3c73e7f14d3c3decb7124d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14467 | 10944 bytes |
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