MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting. These links are likely designed to redirect users to phishing pages or download further malware, aligning with a spearphishing attachment attack pattern.
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://cructi.ru/uplcv?utm_term=put+a+keep+are+you
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d66dc78c3---88366642288.pdf
- https://tangentemag.com/img/file/74117813929.pdf
- http://usaoxin.com/userfiles/2021-5/file/83622931771.pdf
- https://latework.cz/soubory/77263906461.pdf
- https://mednet.mk/public_html/upload/userfiles/file/gulemasijos.pdf
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cdc69e3f94---gopewaselefejapijopeju.pdf
- https://autosaloncenter.com/uploads/file/gidajeguwelomidufetizom.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160871319928d8---lowidaruvigabote.pdf
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/438c66d464ec62be024bca73b34d37f6/wunorotodixikorus.pdf
- https://speeddating.lt/speeddating/ckfinder/userfiles/files/89276512868.pdf
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160991cf606304---34878644781.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/500b77b4d43c029ec65040d5c42d036f/mopavesizet.pdf
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/4e190ab3969ca2794adda2929bf8b79f/3706004460.pdf
- http://growlink.biz/userfiles/file/wifafeturowoz.pdf
- https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/obdnauegkne4jkq52gikivh6tp/zokusuramudit.pdf
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/a45c42a707673c39d1e962c992f2af1c/97200349843.pdf
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c387fbdcf78---tulanipodaxidenugep.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb312e26ee---80001225897.pdf
- http://globeksa.com/ckfinder/userfiles/files/powemezedugoxutavidamabef.pdf
- https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/if058mrnvfi3gebb2mscorqpv2/49862472189.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16091890389b60---28910985913.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d9a5eae3a---67260835751.pdf
- http://dajuicebarus.com/uploads/files/ramoduluzanev.pdf
- http://citra.cl/userfiles/file/tifikobavogetera.pdf
- 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_off0000c6c6.bina54600fc11341f85b30d4d0b1f239b4bc5b88e052e1c0f364b88741c513aabf7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6C6 | 21308 bytes |
font_01_sfnt_off0000fac3.bind1f41d6d9eca6aa08b248f0d2eef7a5100dd82376564736f842c4100bb257abf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAC3 | 10144 bytes |
font_02_sfnt_off000111a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A7 | 16792 bytes |
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