MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting it's part of a link farm designed to drive traffic. The primary external URL, https://inwebjor.ru/pbw?utm_term=public+health+articles+pdf, is likely the intended destination for users seeking 'public health articles'. No scripts were extracted, but the PDF structure and numerous external links strongly suggest a phishing or ad-revenue generation scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://inwebjor.ru/pbw?utm_term=public+health+articles+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4383794/normal_605322621e5b4.pdfIn PDF document text
- https://folugaso.weebly.com/uploads/1/3/4/5/134503816/nebatupoda_nuwitemusanuve_dawola.pdfIn PDF document text
- https://jijelejo.weebly.com/uploads/1/3/4/5/134590633/20672af2c4a1a.pdfIn PDF document text
- https://gevobudijopu.weebly.com/uploads/1/3/4/8/134880408/a99255acba5e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486213/normal_6008fd681d7be.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485930/normal_6002410d375f2.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/f99ecfea-0c71-4672-9933-40bac5cb0dd8/what_is_the_feeling_of_excitement.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/814816da-aa5a-4438-8386-31f86c935d53/xididagajazewumujojonup.pdfIn PDF document text
- http://noxixap.pbworks.com/f/folukabakexifaxepedijesap.pdfIn PDF document text
- http://fadoposapat.pbworks.com/w/file/fetch/144448413/habanera_carmen_guitar_sheet_music.pdfIn PDF document text
- http://gabekujijud.pbworks.com/f/jovipexemaxawumaku.pdfIn PDF document text
- http://mijatonevu.pbworks.com/w/file/fetch/145259904/never_back_down_1_full_movie.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1899d865-c28e-4f2a-9d42-d0173c22f1d3/xetukavumedajifaza.pdfIn PDF document text
- http://buvavipoluvu.pbworks.com/f/xupoxof.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c94efce1-d79a-4d27-94b3-fcf754903948/xalod.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c4af8113-96d1-4b61-82dc-db20d00a58a2/zopeliwisiz.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_off00013a29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A29 | 5384 bytes |
SHA-256: fc0eba194ab60684e23c224950ce33035a8ca18038dd4fb23efffe9b23cc269b |
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font_01_sfnt_off00014c68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14C68 | 11976 bytes |
SHA-256: 78f781446aa2239fb745c7f07fc6a9bdfbe94074349057d392475fb46658b2d4 |
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font_02_sfnt_off000173a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x173A5 | 16060 bytes |
SHA-256: d1a84ba8f0e4a827a048d387db8dd5dae3538f1c7e72415b16af587a9947cdc7 |
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