MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to host or redirect to malicious content. The heuristic 'SE_URGENCY_LURE' suggests the document's content attempts to create a false sense of urgency to prompt user interaction with these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://huntic.ru/uplcv?utm_term=arteries+and+ventricles
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160714c567fddb---11750028701.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160876c8ca1d10---38710777959.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/f5fb2eabb9c7fec6769ad65d714e3b76/3688379276.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16081914a41965---damuxezef.pdf
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/043a59dfb81f099ebb009d2f9a79d2e5/roremolowogigikos.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/0a79db8f344bb95a44a0f68b68d490f0/42588855738.pdf
- http://cuhs1981.com/clients/8/82/82ca37c076ec4232796cb58ed009bb3a/File/80278238050.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7b7773412---mixiwof.pdf
- http://aquamedia.cn/ckfinder/userfiles/files/zexawoxena.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160b3ef01c9524---bedokeva.pdf
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/bed58d38b20a78bbc2ea150cc35df20d/nopotenogubi.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/7c8b6ce9014d213a4952ca0b83b7c6d6/gowofutuneraxelavi.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b322562c847---viratavewiwipatus.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/2a71fa48743a7e43e45b90bc62eb3b8d/rudivitojujut.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160828b170d446---tukixaf.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/rqrj1dmd5c46cant0016j7o65v/18834432813.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16074326c820d9---nabofiwelivaxazavido.pdf
- http://banghetretruc.com/media/ftp/file/34316725248.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c9d63db3f0---gunamojokumonin.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/meu908u90rb3jd0vnr4qgauksn/76561432270.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/b122dba58d7e2727422b462583a8c2c5/kovelif.pdf
- http://eros-arena-reutlingen.de/eros/userfiles/file/3212075171.pdf
- https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/0da0ac724fef8e88d0d382871b6a45bb/xivete.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f281a9562c---xuxijopagibebem.pdf
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/5cf66af8861022a13a5b14cd68719887/lulowademujepilib.pdf
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/c70b47d61647cf6bc51139df4e89cac5/18950919209.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_off0000f8b4.bin047293d8403c27883d1ff1de1ad609df16e3079825303092364ff3a86c44f468 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8B4 | 16608 bytes |
font_01_sfnt_off000123b9.bin835e5bdd9b2e0549b5b2bb8aa9f0090a4da46df9478d2c86138b2445a51e99d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123B9 | 10292 bytes |
font_02_sfnt_off00013b0f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B0F | 16792 bytes |
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