MALICIOUS
176
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. The document contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and SE_CALLBACK_LURE heuristics further supports a phishing or scam-related attack pattern. No scripts were extracted, but the overall structure and URL distribution point towards an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://mygenius.ru/admin/ckfinder/userfiles/files/58722898912.pdf
- https://trompis-tondschungel.de/userfiles/file/92977243408.pdf
- http://www.vikingmaterials.com/img/13850704719.pdf
- https://amursvoidom.ru/media/files/59066109321.pdf
- https://sergiomauri.com/images/file/99617644182.pdf
- http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/90918071846.pdf
- http://daltan.hu/userfiles/file/rotusut.pdf
- http://luatsugiadinhviet.com/upload/ck/files/filobugabamofa.pdf
- http://bioaec.com/userfiles/files/fosoximetidexozetomav.pdf
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/6a9bdb939f46870daf8671c5e889aa0e/tidadijudovode.pdf
- http://praguynakorn.com/praguynakorn/picture/datapro/files/16668777881.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1614164d5334c3---90417042091.pdf
- http://rc-mst.com/mst/_upload/files/wexuderonofavikebaxevoroj.pdf
- https://www.utn.ac.cr/sites/default/files/files/57362062536.pdf
- http://liily.jp/upload/file/20210904053753.pdf
- http://maraulsan.com/ckfinder/userfiles/files/bixixowofibijitebedasew.pdf
- http://bushurov.ru/images/files/zidozademeruvifenajita.pdf
- http://globalroomplus.com/bot/ckfinder/uf/files/7484178885.pdf
- http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/dunizaburo.pdf
- https://sdhouse.info/ckfinder/userfiles/files/gudegafonika.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145f21e80aca---78289723420.pdf
- https://saksisan.com/upload/ckfinder/files/58055072657.pdf
- http://xn--80aer5aza.xn--19-kmcm3c.xn--p1ai/ckfinder/userfiles/files/38835007733.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=super+smash+flash+2+apk
- 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_off0000c0ee.bin629f7dd25a72e20a8643f4903cb0b538c6c7d55592c8bd911bb8e420071b4930 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0EE | 10596 bytes |
font_01_sfnt_off0000d92f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD92F | 16792 bytes |
font_02_sfnt_off0000f141.bin37450b8c27e8ccbd462ee61b6b13e81a5636b2c187f613df28237eb05bbaa64c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF141 | 21880 bytes |
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