MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to compromised WordPress upload directories, which in turn host other PDF files. The presence of multiple distinct hosts and the use of 'utm_term' in one URL suggest a phishing or malware distribution campaign. No scripts were extracted, but the overall structure indicates a malicious intent to redirect users to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a28ec314b9d---lupilomuzajozarobebunojet.pdf
- https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/9847e310d86c9a860f9981c5fc1c88ad/3661879134.pdf
- https://calmoinc.com/upload/editor/file/regipazevijinifukax.pdf
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ce9b71187---51208470656.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/265536183f1ac9b3c87b175bc1ce9103/kosukulufopu.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/tloqr1eah6pp479uv5hn5r6l6o/rutojoruwejigijetoda.pdf
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/178c8202bf523b911a9341d8ab35c469/zadogakipu.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/v89u9p7vclu2kk5trh4c7bis36/gejoxelubiwuwitug.pdf
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/5e781fd95ebaaaf328c0ecb6a288f1b5/87022072209.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082e87bcad5f---bumejupozevebudavirevu.pdf
- https://nanyangtextile.com/userfiles/file/jukojiwejazosavasekexikiv.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609b2256a4e0d---pesotezanuziwesikefeniwe.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/025r6efq3ivrak42o02ikfnoe4/85778436009.pdf
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/58955394540d9cc67dcfd8dd5baec93d/gaxudekesevizaxapoduwe.pdf
- http://firmykominkowe.pl/Obrazki/edytor/file/govozesibevemaposunade.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ce9539afe2e---fuzazusa.pdf
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/l41jct8afna9qpmarecogl32ks/maredafowuduz.pdf
- http://archi1919.com/smlclub-files/file/22594990584.pdf
- http://win-sonic.com/kida2018/ck_imgs/files/61017372180.pdf
- https://noihoithanhtuan.com/media/ftp/file/rilogorupanadu.pdf
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/16095bff3e414e---60959175147.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb6830412e---80102225384.pdf
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877059e4948---69805808450.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=how+many+ounces+of+water+make+a+cup
- 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_off0000cbb5.bin14447ac0baa1c246eb7d2d7830f18bf184c67e0a2dcea3b638ab202aa2eaef53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBB5 | 10888 bytes |
font_01_sfnt_off0000e4ff.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4FF | 16792 bytes |
font_02_sfnt_off0000fd11.binb4846d05a8edf38ec546d6048a4185844552695f75a310257bde8add76dc5faa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD11 | 16764 bytes |
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