MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to compromised WordPress sites, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of multiple distinct hosts and the use of 'utm_term' parameters in some URLs further support the link farm and potential phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7666dcb56---muvebisotemen.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/l53uea5hcnddf6t1m7ed2o05gp/suxus.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16072f241a8771---71958897295.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160872070efcf3---22015216774.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/388c432d3932c0f494c61f12f5f1eaf2/mizajineli.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16072b3bb6f131---wigemenizaviwixuzi.pdf
- http://ithaca1966.com/clients/8/85/85e9e0a76fddb83d7689cebc6ab07fae/File/85940992917.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f2db8c8f9---muvule.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/c08f2b1d08567d81829c5c465ce3d377/27750922876.pdf
- http://sylvianapoles.com/clients/e/e6/e63d90d46a840f0b3195f531cec11f6e/File/nidupu.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c0fe5cd67de---pubixobanawisewemetujagon.pdf
- http://softwarefactory.nl/images/file/juxuxoxule.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/0d982eecd3e555db1f40a02ed7e0f19e/nelow.pdf
- https://unibel.pl/pliki/upload/file/vuvov.pdf
- https://iringmalaysia.com/ckfinder/userfiles/files/92153044358.pdf
- https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/dbdf4d28d101e59ce85d9adcc79fddb6/29090496492.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=i+just+wanna+be+someone+to+somebody
- 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_off0000f07d.bin30a46575eee6a174b8111b6996d18ac7bb7541ecc9b5a38a64e4b295aaddbcbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF07D | 16616 bytes |
font_01_sfnt_off00011b41.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B41 | 16792 bytes |
font_02_sfnt_off00013358.bin5196b67d5256b9ae05b885782d117f2ed7f1702d546ac205de2cf8d19df28dfd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13358 | 10692 bytes |
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