MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Several heuristics point to the document acting as a link farm, directing users to potentially compromised WordPress sites and disposable hosting. The presence of embedded URLs and the 'Download Button' heuristic suggest a phishing or social engineering lure to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://ideviceplus.nl/app/webroot/files/userfiles/files/56100414793.pdf
- http://autovoda.ru/upload/files/24915311776.pdf
- http://favorit.pl/userfiles/file/dudiburemutunetaxobi.pdf
- http://olsztyntransportmedyczny.pl/userfiles/file/xaretakirirejidapatera.pdf
- http://blekinge.boj.se/uploads/userfiles/files/kevokezojugij.pdf
- http://chipublichouse.com/ckfinder/userfiles/files/kagikatubigugumurose.pdf
- http://guerrazzi.info/userfiles/files/lexupuzutuku.pdf
- http://af.ssla.ru/images/fornews/files/11768096316.pdf
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/6d6ba02ca87dc30d04f35a1c2342d0d3/79497724410.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136856326d78---jefejikigu.pdf
- http://iseveranscopy.com/upload/editor/file/diveretot.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5ab428458---gaduboroweripezepaji.pdf
- http://centroolosprato.it/userfiles/files/26898222965.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/161395f557c8e3---44363294377.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/161381dacc7848---13638275631.pdf
- https://jeneifogaszat.hu/cikkdata/files/sedugezimavajewozetif.pdf
- https://rosewoodcity.org/nbloom/fckuploads/file/21079557453.pdf
- https://4cmedica.com/ficheiros_upload/file/67770949444.pdf
- http://kayapalinakliyat.net/file/pelosasaririwitasowuvinoj.pdf
- http://khachsanmyngoc.com/upload/files/66101870283.pdf
- https://morganmethod.com/ci/userfiles/files/wafikilijefegevi.pdf
- https://imagebuzz.net/ckfinder/userfiles/files/59598950089.pdf
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/famadibuveguxuromugafun.pdf
- http://mehmetrasimmutlu.com/icerik/file/woxogap.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/71c8a9580e65053bc0928e600425ce08/tuxemalenebol.pdf
- http://serbanindustrialconstruct.ro/uploads/files/punir.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=android+app+to+delete+duplicate+photos
- 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_off0000da87.bin65c69e3c6bf601c0fb8e161662575c70b006934dd382a052a498df0cade08555 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA87 | 10692 bytes |
font_01_sfnt_off0000f2fe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2FE | 16792 bytes |
font_02_sfnt_off00010b10.binb1b65e206dab7ef7873a5efe8776e2020d801df779685f790477ea9f5c441f6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B10 | 18468 bytes |
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