MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, while some are marked benign, contribute to the overall pattern of directing users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/v2e1vcik579vdfps5uiiola8n0/sisusemapo.pdf
- https://europartner2.pl/uploads/wiludotomeromoxonofemaniw.pdf
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160839fc674a66---tixez.pdf
- https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/aa5bb55a44521a53ec962e53aef9b303/wusonipixatasoro.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609474071bf01---julirudasotelakobeza.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/487a5c6b4b72q7ocbe1ehj0971/panobexemosakamaxabu.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082005780eca---zumopuja.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2a242edf4c---39955868118.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/fcr4ct00focjla6kad5enm1ak5/14587238673.pdf
- http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f034d440af---gebiduwanivujaxuruwotob.pdf
- http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/93781859885.pdf
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/6960d918236a4691d04a932907473ec6/19589671517.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/sunivefadudunipuxe.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1608d297a8597c---59515216731.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607100426f9cc---88390780046.pdf
- http://amajyuku.com/files/files/simodegamifivarazadotulem.pdf
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/5c11f1a60ece7ed1fce312e151b4bab4/rakizileguteximiv.pdf
- https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/2ec48d4d2061c25ce85f8c50b22b5a30/xokaxapaminogumubibegos.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=personal+stress+test
- 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_off0000e633.binff7e2227dec5ce28013f4d76ff94f83dfc350d8e9ca3a6fc175d5aba14d9755c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE633 | 17588 bytes |
font_01_sfnt_off00011499.bin65941169b6c2b666b74cc7a403f4f5b2fbf4c7dfedb4392ad2dff2e8233d6902 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11499 | 10008 bytes |
font_02_sfnt_off00012b03.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B03 | 16792 bytes |
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