MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple disposable domains, a common tactic for hosting malicious payloads or phishing pages. The ML classifier strongly indicated maliciousness, and the presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. The document body is heavily obfuscated and appears to be junk data, offering no direct clues to the intent beyond the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 5
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://e-store-sys.com/userfiles/file/17814881471.pdf In PDF document text
- https://distriparkbotlek.nl/userfiles/files/dulirobokivig.pdfIn PDF document text
- http://aptekainternetowa.net/_mdm_apteki/file/81914628171.pdfIn PDF document text
- http://skkouty.cz/ckfinder/userfiles/files/65933133903.pdfIn PDF document text
- http://balogmihaly.hu/UserFiles/file/42273531616.pdfIn PDF document text
- http://yongchengtech.com/uploads/files/202109181908559679.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16139f64530c5b---9613799606.pdfIn PDF document text
- https://fiberglasssupplydepot.com/userfiles/file/13149684138.pdfIn PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fa8a144a89---38967013053.pdfIn PDF document text
- http://kunjipsc.com/uploads/files/fizabori.pdfIn PDF document text
- http://comlark.ru/userfiles/files/4812308737.pdfIn PDF document text
- http://eros-arena.name/eros/userfiles/file/18936981669.pdfIn PDF document text
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/311942834064682f1d396893d6d929a0/sakap.pdfIn PDF document text
- https://produktybhp.pl/pliki_user/File/tanemuganekikujisof.pdfIn PDF document text
- http://nemalipics.com/muraxikonobo.pdfIn PDF document text
- http://imdad-egypt.com/userfiles/file/74817991148.pdfIn PDF document text
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210906015340.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/dff0aeee08843160032ef36f6008dfa2/roxegisijawuto.pdfIn PDF document text
- http://fullerton.kopanramen.com/uploads/files/renifufoxeforizog.pdfIn PDF document text
- http://bckbytow.naszbip.pl/img/upload/files/woxopo.pdfIn PDF document text
- http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/bovojejizir.pdfIn PDF document text
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/e46ba6d4e20990a2d3a6df6d1a2c803d/54868929171.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/8dee3fae1090fcefa20327d14c842cfa/62899817839.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=download+game+ppsspp+android+format+isoPDF 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_off0000bb57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB57 | 10928 bytes |
SHA-256: ecc0c535fa8df5068f67d7a58b0076c63e53916386b799ac990432dae93f8fac |
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font_01_sfnt_off0000d474.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD474 | 16980 bytes |
SHA-256: 0f054710c99b550b55d8fbd269be180a942c664cc5c707a90767b91feadf808e |
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font_02_sfnt_off000100a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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