MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm, with many distinct hosts and links pointing to compromised CMS upload storage. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The embedded URLs suggest an attempt to redirect the user to potentially malicious content hosted on various domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/nocsrl99c9me3lkhnb6m7qnncn/feladaberatejivadolob.pdf
- http://saovietgroup.com/upload/FCK/file/75898446633.pdf
- http://digitalpolicycouncil.com/imagenes/file/1874611812.pdf
- https://anukulagrotech.com/userfiles/file/rifapaba.pdf
- http://chroscina.com/userfiles/file/dosax.pdf
- http://seamacros.com/upload/file/lumazitiponabetuzi.pdf
- http://iaestedresden.de/userfiles/file/werezizari.pdf
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/459ed58297e650e0a762ff149d05d65e/furaritusugovizowule.pdf
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e87dea0bf6---50590318602.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/7bf11e4b65110ac739e95d445d1fa019/64087932361.pdf
- http://willbramephotography.com/40193993869.pdf
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160763bda6041c---silugosoxuf.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/7c8f8ab3141fc8027f52fa29c0984b16/mabufodoteriweru.pdf
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/5242239c9cdd4f4e571c41e5faef0260/71111769632.pdf
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f1f2659ba9---30886781358.pdf
- https://aartipalette.com/userfiles/file/nikupikamoxamapus.pdf
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/r0qkbn9n76rtf01hvvbiagkj90/35197538128.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d79925a65fe---kumigopelovovakud.pdf
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/301dccc9e1c18adb9c119e890a281fc9/2306674411.pdf
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/b598c8274fc0a0bebcb2c6950a31b861/48355296766.pdf
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/b2430e5adf5f1c8c617ffe0123f6e256/femabazibire.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/vn2fmacppn16a3d95pj6ejhed4/kemiwixefumeju.pdf
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/o6pnsjdk68as3puk4imk08v5ht/93398922068.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=gonorrhea+has+a+cure
- 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_off0000e7f1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7F1 | 16792 bytes |
font_01_sfnt_off00010003.bind77e09c2284e311b2711c0c6ba96fa4122b6f12dd9ebfefe245d44f29a632b46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10003 | 16772 bytes |
font_02_sfnt_off00012c05.bina60039e6837b588a594bc9bcab2dc6baee06bdf93dfa70aa3e78ee069963d38c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C05 | 10232 bytes |
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