MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by a machine learning classifier and ClamAV. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO poisoning tactic. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and 'Qt', indicating it was likely generated by a tool. The primary purpose appears to be directing users to various external PDF files, potentially for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://nipisod.ru/wix?keyword=binomials+and+trinomials+calculator PDF link annotation
- https://cdn.sqhk.co/xolanikipiz/nligTgi/roblox_avatar_maker_for_xbox_one.pdfIn PDF document text
- https://cdn.sqhk.co/zukasedu/fZIjKgh/mevipadotif.pdfIn PDF document text
- http://nafarami.medianewsonline.com/jiwizotaximof.pdfIn PDF document text
- https://cdn.sqhk.co/jomawutid/hjizVid/mastercraft_courser_cxt.pdfIn PDF document text
- http://kidepokapila.22web.org/83383457704.pdfIn PDF document text
- https://cdn.sqhk.co/kibukumivu/9xeDihZ/12734642211.pdfIn PDF document text
- https://puxosuloboja.weebly.com/uploads/1/3/4/6/134677226/3d09275c74b7.pdfIn PDF document text
- https://vewiwuxipax.weebly.com/uploads/1/3/2/6/132681682/3e7d26bbd9b85.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4428043/normal_5fccabb4bb9c8.pdfIn PDF document text
- https://cdn.sqhk.co/pijajawopoji/huAjgdq/ruduvupozuji.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4407318/normal_5ff05e39f0f31.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418199/normal_6011b045802da.pdfIn PDF document text
- https://cdn.sqhk.co/zimuteraf/jbidGie/football_manager_2020_mobile_free_download_apkcombo.pdfIn PDF document text
- https://cdn.sqhk.co/salavogi/iimjix7/8123508270.pdfIn PDF document text
- https://faxilazow.weebly.com/uploads/1/3/4/7/134725206/37ce64e6f99d7fa.pdfIn PDF document text
- http://muvajopumo.22web.org/guideline_foreign_body_ingestion.pdfIn PDF document text
- http://kutegexuwudaro.getenjoyment.net/soxusofokopugagebopit.pdfIn PDF document text
- https://cdn.sqhk.co/vejuwipem/qLl6Via/vebavisojegeberugepun.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- http://wapepot.rf.gd/busqueda_avanzada_en_internet.pdfIn PDF document text
- http://pimimozoji.myartsonline.com/mental_retardation.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://scripts.sil.org/OFLIn PDF document text
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d6bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6BD | 5132 bytes |
SHA-256: 4f90a6be6b316ae666e973f8027b1588c970a657948b25fb36c07e8eeab92303 |
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font_01_sfnt_off0000e80a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE80A | 1936 bytes |
SHA-256: 84daf345e21b08075a6e329eeacb0a13a0447ddcc3efc64e98a9a4ab9c6a9d9d |
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font_02_sfnt_off0000f140.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF140 | 6148 bytes |
SHA-256: 488ffee5e9c33bcc1f3f00aec749f35977d0cdd209ffadaee35194d66ecc177d |
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font_03_sfnt_off00010120.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10120 | 11264 bytes |
SHA-256: 20b00395d50dcd7083335faee9cd3c27970dfa93ac033673df96302b9ef879cb |
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