MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by multiple heuristics and a machine learning classifier. It contains a significant number of embedded URLs pointing to external PDF files, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. One critical heuristic indicates a link to known malicious redirector infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://dafemum.ru/award?keyword=aliran+filsafat+behaviorisme+pdf In PDF document text
- http://8gusevshop.space/pico_island_winee4pkb.pdfIn PDF document text
- https://cdn.sqhk.co/fonixoligem/ghibhjJ/lefogobasuxakaxulesegesi.pdfIn PDF document text
- https://cdn.sqhk.co/zaviresodew/jfXMthf/lemon_bundt_cake_using_pudding_mix.pdfIn PDF document text
- https://cdn.sqhk.co/fujotojaxob/i2zWgff/laperulapixamafoz.pdfIn PDF document text
- http://buxozadogaro.22web.org/tactics_for_toeic_part_2.pdfIn PDF document text
- https://cdn.sqhk.co/vavapezami/hejijf5/58249175559.pdfIn PDF document text
- http://luminar2-download.xyz/24180406487g9wic.pdfIn PDF document text
- https://cdn.sqhk.co/pixisuja/aDY4iih/69035893769.pdfIn PDF document text
- https://cdn.sqhk.co/mijajijem/Xsbidgj/names_meaning_night_hunter.pdfIn PDF document text
- https://risimapi.weebly.com/uploads/1/3/4/3/134321435/fevufavoluga_bikizajazalapij.pdfIn PDF document text
- https://cdn.sqhk.co/fafovewidom/bYjeifh/63500142774.pdfIn PDF document text
- https://duxoberadu.weebly.com/uploads/1/3/4/7/134718286/7627961.pdfIn PDF document text
- http://negimemexib.iblogger.org/acuerdos_de_paz_descargar.pdfIn PDF document text
- https://cdn.sqhk.co/sujubowip/fB3gcrG/learn_to_play_piano_free_download.pdfIn PDF document text
- https://nobewiga.weebly.com/uploads/1/3/5/3/135315034/zakexab.pdfIn PDF document text
- http://thesimplycompleteseries.com/never_gone_eng_sub_ep_1_fulltcsy4.pdfIn PDF document text
- http://halfraire.xyz/are_hidden_photos_on_iphone_saferjmj7.pdfIn PDF document text
- https://cdn.sqhk.co/kinerufi/hi31dye/31884883138.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://votofeki.epizy.com/nedude.pdfIn PDF document text
- https://d798de41-6847-46d1-b877-4f1b84f556ee.filesusr.com/ugd/3e315c_93a06601716846cbb2bd52fc46080ced.pdf?index=trueIn PDF document text
- https://76bf42c0-7447-45ed-8dd3-33f9786ae3ae.filesusr.com/ugd/ba2c19_d633a6018a8a4ffd9bf6c3bb771e0f73.pdf?index=trueIn 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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC8E | 5468 bytes |
SHA-256: e3d083bd4bbed62b110848d02641cd12451fe5cc6238f09aa67b8ab8af6ab02a |
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font_01_sfnt_off0000feff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEFF | 10848 bytes |
SHA-256: e713d0ac1e49c6b0034ddb95aab1fa9598cfa704c217b675614430b2b6fab3ab |
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