MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a phishing trojan by ClamAV. Static analysis revealed it contains numerous links to external PDF files hosted on various domains, many of which appear to be compromised or disposable. The heuristic 'PDF_RANDOM_URL_LINK' specifically points to a URL that is likely part of a malicious redirection chain. The presence of these links suggests the document's primary purpose is to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4750
Heuristics 6
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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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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://taichielite.com/louis/taichi/ckfinder/userfiles/files/11794914168.pdf In PDF document text
- http://195exim.com/datas/files/35299971487.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144050b7c96b---91970373954.pdfIn PDF document text
- https://manage3.realtourvision.com/rtv/ckfinder/userfiles/images/files/71521087187.pdfIn PDF document text
- http://adacu.org/userfiles/file/20210909222824.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16131859884017---kurirelezekumosekuju.pdfIn PDF document text
- http://ronaldtan.nl/images/photo/92672196524.pdfIn PDF document text
- http://rapet.hu/files/leburizufevog.pdfIn PDF document text
- http://corse.annuaire-regional.com/ckfinder/userfiles/files/27952321077.pdfIn PDF document text
- https://leciv.fr/uploads/FCK_files/file/17388618437.pdfIn PDF document text
- http://itkaufmann.com/images/fckimages/file/86090205730.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613faa8f964c5---46905012879.pdfIn PDF document text
- https://ijp2.com/contents/files/4003253242.pdfIn PDF document text
- http://ryouhurt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/popefovuxajewozi.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/b181ac631b562fbc4fbd3e23e14699e5/96335946369.pdfIn PDF document text
- http://electriccityusa.com/images/fck_uploads/file/75252402120.pdfIn PDF document text
- http://debten.net/UserFiles/File/dunifalivuda.pdfIn PDF document text
- http://clearspace-design.com/CKEdit/upload/files/25647380522.pdfIn PDF document text
- http://cuacuonanbinh.com/userfiles/file/4019731941.pdfIn PDF document text
- https://timminsrenovations.ca/file/wyiAf3TPP18YUSMq.pdfIn PDF document text
- http://uptownfallschurch.com/uploads/files/94943891623.pdfIn PDF document text
- https://xn--lenachatka-57b.pl/uploaded/file/dowos.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16138e85b89bc3---37976901512.pdfIn PDF document text
- https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/vaverukegif.pdfIn PDF document text
- https://skyzoan.com/cake/beta/userfiles/file/vujapaxonevemejoz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=mod+menu+avakin+life+2020PDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA3A | 18572 bytes |
SHA-256: 3935b708694ac835c1ee8d092de5ca03b1135f645b2dd741c435e5eb18c813d2 |
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font_01_sfnt_off00010a5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A5B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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