MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The embedded links, such as 'https://dafemum.ru/wb?keyword=shure%20pgx4%20manual%20portugues', are designed to lead users to potentially harmful sites. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create malicious PDFs that mimic legitimate documents to trick users into clicking malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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 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 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/wb?keyword=shure%20pgx4%20manual%20portugues In PDF document text
- http://katerevemoposab.iblogger.org/give_me_liberty_chapter_12_review.pdfIn PDF document text
- http://creditscoreusa.info/the_spiritual_man_sermon7jk22.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387566/normal_5fd64b65f172b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365560/normal_5fc70ee8549a4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474465/normal_602fdd2596315.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4411498/normal_5fc605c23273c.pdfIn PDF document text
- http://latuha.com/3645204064zl6rr.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4487906/normal_5ff7a342c74ae.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450878/normal_5fed651383cc9.pdfIn PDF document text
- http://dikiradojasika.iblogger.org/come_aggiornare_android_su_huawei_p6.pdfIn PDF document text
- http://bestunew.xyz/algebraic_expressions_worksheet_tes1fuvw.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384828/normal_6031446a422b7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://6f84c080-6bd2-4154-8ce1-0e390380bda5.filesusr.com/ugd/defdb4_531aaeea38194ad38e843464735629cf.pdf?index=trueIn PDF document text
- https://d5f1d3db-1598-48d0-a061-764c190a6564.filesusr.com/ugd/866690_8aed1b8828bb49ca85998844b5631cca.pdf?index=trueIn PDF document text
- https://828c6a01-da61-4814-986a-f72e64f4f334.filesusr.com/ugd/cdfdba_a5ae30d9f21c459cb7705c58dc036fe8.pdf?index=trueIn PDF document text
- http://xedovafimolodem.epizy.com/vayne_guide_s8_top.pdfIn PDF document text
- https://s3.amazonaws.com/zakunafu/zuninituloxereduli.pdfIn PDF document text
- https://1482387f-61d8-47e1-b538-9b7f1e8b89fb.filesusr.com/ugd/538d67_fdc6d65ab7f84c7e847e05d094e7b00a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tajimipojimo/it_act_intermediary_guidelines_2011.pdfIn PDF document text
- https://s3.amazonaws.com/vigevot/zubigerubavubaxe.pdfIn PDF document text
- https://s3.amazonaws.com/fajetufekejo/ielts_reading_test._file.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://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_off0000f3fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3FC | 5492 bytes |
SHA-256: a99010ced7e661ccd3446c9cd4dabac68fc796499307172af4c48be64ff5b7e8 |
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font_01_sfnt_off00010687.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10687 | 12568 bytes |
SHA-256: 86ee405aeb54e57c561658dfb0ea08e058747f92839314e4ab31a29c3bc88526 |
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font_02_sfnt_off000130d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130D0 | 16064 bytes |
SHA-256: 87bac7116cce17a810d08151410b930347e6d8b8f011720992609d67c697163a |
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