MALICIOUS
156
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. Heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The presence of external URIs and link farm characteristics suggests a phishing or malware distribution attempt, likely leveraging embedded JavaScript for execution.
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 https://irlanc.ru/uplcv?utm_term=wtyczka+java+na+androida PDF link annotation
- http://king-pro.com/userfiles/files/pojesusajabagaberosajox.pdfIn PDF document text
- http://fu-xin.tw/uploads/files/202109180351005816.pdfIn PDF document text
- http://firesecurity.sk/userfiles/file/97427085100.pdfIn PDF document text
- http://lutechmed.com/Images_upload/files/53926083085.pdfIn PDF document text
- http://dnepropress.net/files/file/tedip.pdfIn PDF document text
- http://hzkontejnery.cz/ckfinder/userfiles/files/doselozugatarami.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aaeb56e276---tijule.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161430ecb56b8c---64632545441.pdfIn PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/a1cd0a6066c5a9f9a734bcd51f051518/lovamipineni.pdfIn PDF document text
- http://staractivecollection.com/resimler/site/files/64248816641.pdfIn PDF document text
- https://valgott.com/images/userfiles/file/53353441841.pdfIn PDF document text
- https://dalycity.com/wysiwygfiles/file/54077232522.pdfIn PDF document text
- http://www.childofafrica.org/media/userfiles/file/49850186909.pdfIn PDF document text
- http://membranekeyboard.pl/_data/file/roxojugefodulutedasawig.pdfIn PDF document text
- https://tidurmalam.com/contents/files/bemumosajas.pdfIn PDF document text
- http://flightshop.jp/images/blog/file/13925499604.pdfIn PDF document text
- https://projectmine.hu/ckfinder/userfiles/files/deziverenogexivoteteliza.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/29iffrnt5s7nut7rhp0obolir0/64469995159.pdfIn PDF document text
- http://sungwoo-n.com/userfiles/file/bubul.pdfIn PDF document text
- http://okudshava.ru/userfiles/file/88270845093.pdfIn PDF document text
- https://proxkimya.com/resimler/files/19795997733.pdfIn PDF document text
- https://fsreloading.com/userfiles/files/mewixufozapuxa.pdfIn PDF document text
- http://akgwealthplanner.com/crm/files/29918682212.pdfIn PDF document text
- http://obras.ru/sites/default/files/uploads/lunatezaxubirajepivoved.pdfIn PDF document text
- 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_off0000d4ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4EE | 17824 bytes |
SHA-256: f254cd574b36d5b2586d40cf8686a6c25f77bde8d5433f28bcba14a2ca383805 |
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font_01_sfnt_off000103b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103B3 | 10472 bytes |
SHA-256: b5f8cc664d39de3a6503cbb63bddf3e37d0244b6891be64318e06f7a6d58f78a |
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font_02_sfnt_off00011bad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BAD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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