MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, with numerous URLs pointing to compromised CMS upload directories, suggesting an attempt to lure users to malicious content. The presence of these links and the overall structure indicate a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/aa2784d944746e8c2d6c20b44db7ac1b/regawofafupumifev.pdf In PDF document text
- http://smwiarus.pl/ckfinder/userfiles/files/pamupakikixolexe.pdfIn PDF document text
- http://creativecoms.net/userfiles/file/gadezaligunafoluvafu.pdfIn PDF document text
- http://ei-windykacja.pl/upload/file/nudinunuduvonaw.pdfIn PDF document text
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/tp7bobfv5j35n4bsgog16tascv/48094936887.pdfIn PDF document text
- http://toszegisuli.hu/userfiles/file/vivob.pdfIn PDF document text
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161564142049bc---81503165312.pdfIn PDF document text
- http://comp-art.ru/userfiles/file/14149486202.pdfIn PDF document text
- http://paletydozahrady.cz/ckfinder/userfiles/files/xukij.pdfIn PDF document text
- http://haliburtonhighlandsheritage.ca/userfiles/file/34573238552.pdfIn PDF document text
- https://tjp2-hotlink-j3t.com/contents/files/tixemofuxironunijotonu.pdfIn PDF document text
- https://dolnoslaskialarmsmogowy.pl/imgturysta/files/72838941850.pdfIn PDF document text
- https://kheops-so.fr/ckfinder/userfiles/files/51691491351.pdfIn PDF document text
- https://jajugroup.com/ckfinder/userfiles/files/firenudigomabidasasam.pdfIn PDF document text
- http://nato-denkmal.de/uploads/file/73603900466.pdfIn PDF document text
- http://gocchame.vn/app/webroot/img/uploads/files/samesugidifajavofij.pdfIn PDF document text
- https://spitalmoldovanoua.ro/ckfinder/userfiles/files/5492668305.pdfIn PDF document text
- http://micronforgacsolo.hu/UserFiles/file/labamodoxuputijibaset.pdfIn PDF document text
- http://foto-recepty.sk/images/fotky/lakasuviluw.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e648a2e61---tafarumujoxuraraset.pdfIn PDF document text
- https://agri-mal.pl/userfiles/file/sefitejonurakiwizijuta.pdfIn PDF document text
- http://serramentisiciliano.it/userfiles/files/2615609678.pdfIn PDF document text
- http://asude.istanbul/ck_images/files/majuputosaleka.pdfIn PDF document text
- https://gloriamus.org/Uploads/userfiles/files/lanarenubafobusaxigus.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=all+thousand+yearsPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b512.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB512 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD29 | 10448 bytes |
SHA-256: 7a013c4a72f5ad04ba1fe3cb2094c20d1f105e1bb907db67b654229e92e6dfcf |
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font_02_sfnt_off0000e4e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4E7 | 14548 bytes |
SHA-256: 6575c5e28eb42124db548a93f3a82bf8ee46a439ddd973e65b2101593ba51d28 |
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