MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links to external websites, many hosted on disposable domains or compromised CMS uploads, suggesting a link farm designed to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly supports this attack pattern. No scripts were extracted, but the overall structure points to a malicious document intended to exploit user trust.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://nomylo.ru/uplcv?utm_term=severe+asthma+cough
- http://patp1ryb.ru/media/file/zikibixuvisalemiwazuta.pdf
- https://alianzatours.com/imagenes/file/kexuwarogab.pdf
- https://hostingyuvasi.com/calisma2/files/uploads/tiluwogimurino.pdf
- https://global-product.org/CKEdit/upload/files/jelesixobawozori.pdf
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/9226ce2aac057fd75875a0ce6f19ebd9/78180345335.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160788a79b85f2---zupifijebelebi.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aea1f76cdca---xebowukoze.pdf
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160813c8cd41db---zagiwapobemupipekubiwe.pdf
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/dmcmgo7tbj4lfcbq3b15ksuh73/pafuxuwujojixifakojarubem.pdf
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609778322c8af---92573457198.pdf
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091dd4a1c912---97417795277.pdf
- https://sahodayabbsr.com/test/fckeditor/file/miwobazatitinumurizupo.pdf
- http://www.irrv.org/uploads/files/mazeduwogasoxe.pdf
- http://simkoongschool.com/uploads/editer/files/vepupuzegoporavo.pdf
- https://brothers-music.com/ckfinder/userfiles/files/88746143675.pdf
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16089cad794999---jixokorapakelemirojator.pdf
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/i89voc3p4k4gvsfd7k01g1834f/10540955068.pdf
- http://asupuro.com/user_data/image//file/bijazusozuruvefubo.pdf
- https://palcev.ru/userfiles/file/71036549815.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082ea954be48---zatosibagalosonajo.pdf
- https://sce.tw/uploads/files/60cd6ba0b88b9.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098c871898fc---wopaseridogej.pdf
- http://altinay-law.com/images/file/78791400738.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/ja62moqdqmhuuededd45pp9hpe/fedatorevewufuv.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_off0000ecbe.bin85e6b32178158bd0819f945027344d47884da4e9a8cd9c367d38f27476982ea8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECBE | 10676 bytes |
font_01_sfnt_off0001054e.bine6a8eef0da6b6d7d1d765fc63dfb3d1d2685dfed58a0924f23660633d7ec7976 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1054E | 16380 bytes |
font_02_sfnt_off00012fa3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FA3 | 16792 bytes |
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