MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded links pointing to compromised CMS upload storage and disposable hosting, suggesting it is part of a link farm designed to redirect users to malicious sites. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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 http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5fd1ca0f1---jowalelobomekiriretuvu.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/f6332db1348dc222f2ee7332ace4ab5b/846955433.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/480v2s4sj82co73gk18sg1bnlk/rifuranifadugugusanaga.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/dc927dd3ca58905e46355ba7a1663b87/wotipewudaju.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/bef93ca28bfcebd6314b9df887dcf1e8/gikokemosoti.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085e51c9ea26---595735001.pdf
- https://riondene.ch/img/uploads/file/80227353276.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/6ca463c1c3b6c20826aaddcbccef02fe/vaguxelamadodinapomepuwum.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/5h9isqbsh0h8ueqgr4921bh1a4/31186804095.pdf
- http://cityclick.it/userfiles/files/tujatazila.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160905e2dc881f---musiwozewuwezexenolosatez.pdf
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d834bcb73---80028153155.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607d68b721795---jutibosobipabevim.pdf
- https://pepinieramontana.ro/ckfinder/userfiles/files/pononelubitexonakoxedo.pdf
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c57868381a7---ligumatetat.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4925ceb1f---tavebetumenunimodojevomil.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/835f92fb421545d28bb6a5ef1e75b8a9/vunuxizevisarumewujisewu.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609549ab7063f---85634738124.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2fd0c061f---6977124408.pdf
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c687769e617---tawupemo.pdf
- http://apluskleaning.com/admin/images/file/fabelekefaxafup.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160a557b485421---wanopi.pdf
- http://angelcabrera.com/FCKfiles/file/59037697704.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/5ad2f86a449ce995599b7a6fc6cbf0b2/jesavabavanizitajabisowe.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=use+of+bench+vise
- 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_off0001186b.binc86198f297ac4e34b9d6377187b2babe8ef6133a93c9b5a8d3b791d26babc493 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1186B | 17228 bytes |
font_01_sfnt_off0001454d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1454D | 16792 bytes |
font_02_sfnt_off00015d64.bindbd09ff1d71ef7ccc01d425811581c7021fee99a5abccf558815b3888c343eb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15D64 | 10240 bytes |
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