MALICIOUS
86
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a high number of embedded URLs pointing to various domains, many of which are likely part of a link farm designed to obscure the ultimate destination. The ML classifier strongly indicated maliciousness, and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic confirms the presence of a link farm on disposable hosting. While no scripts were explicitly extracted, the structure and heuristics suggest an attempt to redirect users to download further content, aligning with a phishing or malware distribution tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 5
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://tonmathunglan.vn/upload/files/kuredovosamigikofojo.pdf In PDF document text
- https://kawanmto.com/contents/files/jibelenijudovupona.pdfIn PDF document text
- https://biblioteka-koneck.pl/ckfinder/userfiles/files/54851174901.pdfIn PDF document text
- https://prokoncept.hu/admin/blogfck/image/file/45232205812.pdfIn PDF document text
- http://swvocal.com/data/se2/file/bilokujelilipiniwi.pdfIn PDF document text
- http://bjsddesign.com/filespath/files/20210901133227.pdfIn PDF document text
- https://fedico.ca/upload/editor/file/25821822022.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/b19e03340582b422f285fd53f012abf8/dupezewegivubevosaluzakod.pdfIn PDF document text
- http://thrifthelp.com/flash/thrifthelp.com/file/bunepumuku.pdfIn PDF document text
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/16131f507b9665---posowudepevaduwulibiv.pdfIn PDF document text
- https://clubelsendero.com/img_pag/file/jepaluv.pdfIn PDF document text
- http://candientushinko.com/images/file/digivumivosivamurivawex.pdfIn PDF document text
- http://aftp.bg/userfiles/file/47799957110.pdfIn PDF document text
- http://espokebar.com/uploads/files/78870489927.pdfIn PDF document text
- https://etest.vn/app/webroot/uploads/files/17369846366.pdfIn PDF document text
- http://telekommarketing.com/firme_data/files/wubusipovala.pdfIn PDF document text
- http://www.chubsorn.com/file/files/55919153458.pdfIn PDF document text
- http://detikakdeti.ru/img/file/nereguwabimewamuza.pdfIn PDF document text
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/766a403cd0d7ef1f1414c6c0bf6f39ed/lokolodatej.pdfIn PDF document text
- http://ginzaramen.us/uploads/files/ranesid.pdfIn PDF document text
- https://art4you.sk/editor_uploads/system/files/liforumugozen.pdfIn PDF document text
- http://caphegiabao.com/upload/fck/file/64332467521.pdfIn PDF document text
- https://maggies-handmade.com/UserFiles/files/1843670450.pdfIn PDF document text
- http://karinameal.ru/imgdish/files/45669354714.pdfIn PDF document text
- http://peoplefineart.com/assets/202109/files/20210910121532253235.pdfIn PDF document text
- http://fge-service.com/userfiles/file/nitimupuxaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=free+download+whatsapp+software+for+android+mobilePDF link annotation
- 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_off0000ebec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBEC | 18592 bytes |
SHA-256: 552deeb3f5be1c6bce089aeae465927653a0818e91d17a2d810de1a1b1bb4c44 |
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font_01_sfnt_off00011bcf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BCF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000133e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133E6 | 10964 bytes |
SHA-256: c9838b726d8b1d8afa5b595ff301e3be47811bc13e4dddee63222213558aa99c |
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