MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure but reinforcing the malicious nature indicated by the heuristics and URLs.
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://irlanc.ru/uplcv?utm_term=practice+exercises+for+active+and+passive+voice
- https://cvsc.co/userfiles/file/21966601406.pdf
- https://aspaeng.com/files/image/files/53634610578.pdf
- https://astek-telem.fr/userfiles/file/gababot.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/ef18a0557fe99102f07df0cb897478f3/13458540455.pdf
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/9b81a451f7e786ee074b189bcd0c558f/luxinujijebadosus.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/4755775ff4c34f8081a9967398e0f3c0/welupubegutivu.pdf
- https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/bd605f2895aa84ec4e8b1e9636ca44f2/ximipow.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077bc0a5fd11---madexepikewamupekowel.pdf
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c258992c67b---65271647032.pdf
- http://apsara.ru/userfiles/file/65863882642.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/rtmh7hihvo46qs0lta4ap1l5h5/giluvedevufogotak.pdf
- https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/102f6e405b4663f19ec0ae3cdf089f0b/23931547585.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c5615fed4d2---53592321597.pdf
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/bf4a461b66943736ecbc9195f7ef2b3a/pawawa.pdf
- http://kondicionery-ivanteevka.ru/upload_picture/file/vafeniruvajaf.pdf
- http://ahkjt.com/upfile/file/dazedubixuxerejagezipoguk.pdf
- http://loscogliodifavignana.it/userfiles/files/12900221895.pdf
- http://rheumatology.instituteupload/content/file/vajipigasekuvepotixo.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d68bf15bdd---41194309049.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/dib64b9s9784bneq3r4764bp80/93980712671.pdf
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/d4a5cadfb1092a4c31341ad781830ae1/wetud.pdf
- https://cls-toronto.com/wp-content/plugins/super-forms/uploads/php/files/dcb48bf06e04d4d3c1276a487ee6dcae/zuweloxa.pdf
- http://contextuae.com/resimler/files/supifavakirapadi.pdf
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/5rvvd8t82lacrov4i3k8om5lpi/82448467419.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_off0000e73c.bin22dfa03534a0f9edfd6d6a78427400b3edb47ba4d95a4ae821d483e2d8cc5c7c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE73C | 16756 bytes |
font_01_sfnt_off000112b7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112B7 | 16792 bytes |
font_02_sfnt_off00012ace.bin3c64e3ab4edabef015db63ba2fd1550b400257f4d06bb35d46f4da121ecc837e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ACE | 10736 bytes |
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