MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to numerous compromised WordPress sites and disposable hosting domains, likely to distribute further malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/09p7im2dc7hv3kgjif4gfkkrf5/wiruzoxugove.pdf
- http://backupcenters.com/userfiles/file/31013601551.pdf
- https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/t0m8rig6qmufm9m7sq3lbq7vjn/tewasesor.pdf
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1609dca56c1b3d---jopudodipazesufa.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609adb97d3bec---lutadilisene.pdf
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/8s76gd3ckquth7d29g5j3dtdbu/podufoveduzobenokud.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/31368983873fd3b720fa5979df2c6bc1/97832293361.pdf
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160907dab83352---27597379520.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0751e68d3---96520566376.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607855bcd93e4---5575922911.pdf
- http://yournamebadges.com/withyourdog/cms_uploads/file/vovuzagekaxixigad.pdf
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084032608dc0---nerisapotoragewalu.pdf
- https://aprilboya.com/userfiles/file/labesupusekaj.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072a1c42d503---kimin.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/6844f8fd139bd861c2c9684a68e3c862/66184894716.pdf
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/n4cn3r0h2man4feh7t9snqmk36/89549206317.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/p4elnve2qsm7f7oaevgvdur0rj/75994727338.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=spiderwick+chronicles+book+4+pdf+free
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ce2d.binc7c55105607b681ad1bab48a1ae8b56666731aa2039b4623c821f6350f44790b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE2D | 5228 bytes |
font_01_sfnt_off0000dff0.bin5f4b5a0542a21134d1be15a52bc1eda9c60de08751077cd10d9d1f98fdf26903 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFF0 | 11056 bytes |
font_02_sfnt_off000104ad.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104AD | 4324 bytes |
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