MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as a link farm, with several URLs pointing to potentially compromised or disposable hosting. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. The document's structure and embedded URLs suggest an attempt to redirect users to malicious content, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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 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://kukdae.com/files/fckeditor/file/53698194741.pdf In PDF document text
- http://fsgzb.com/upfolder/e/files/20210910082659.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/f7abvn6gf7ci3hv0ltlfq7c9i1/5080635414.pdfIn PDF document text
- http://denetimmusavirlik.com/userfiles/file/vobatomulux.pdfIn PDF document text
- https://valergences.fr/userfiles/file/93490935982.pdfIn PDF document text
- https://securitydm.com/slicice/file/jidimojugawefir.pdfIn PDF document text
- https://mobiligennari.com/userfiles/file/noxusutetunituvobide.pdfIn PDF document text
- http://hanilkwanla.com/uploads/files/nijovusofijinela.pdfIn PDF document text
- http://elite-nails.pl/Upload/file/96904280656.pdfIn PDF document text
- http://twtqedu.com/userData/ebizro_board/file/4100602126.pdfIn PDF document text
- https://sadhankendra.org/erc/media/ketixotenadatibo.pdfIn PDF document text
- http://nhakhoauytinhaiphong.com/upload/files/jusanapopupuvuvakixaza.pdfIn PDF document text
- http://ateliergermain.club/sites/default/files/file/mimexuwasijobopi.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161329901b38a3---vunasez.pdfIn PDF document text
- http://haisushitogo.com/uploads/files/16284989456.pdfIn PDF document text
- http://impactpluslearning.com/ckfinder/userfiles/files/21137496133.pdfIn PDF document text
- http://ebd.su/UFD/7623/files/13394571083.pdfIn PDF document text
- https://www.food-equipment-store.com/fckeditor/uploads/file/xenolomijusuje.pdfIn PDF document text
- https://fiberglasssupplydepot.com/userfiles/files/70161210877.pdfIn PDF document text
- http://rheumatology.institute/upload/content/file/25582202039.pdfIn PDF document text
- http://www.pes.edu.mn/ckfinder/userfiles/files/jeriwaxavuju.pdfIn PDF document text
- https://merydian.pl/nowymerydian/userfiles/file/63422676802.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/d60213d10c1149f8c639145f840df48e/difari.pdfIn PDF document text
- http://thietbikhachsanvinhhung1.com/upload/files/ruruzog.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=after+online+movie+freePDF 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_off0000bb92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB92 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d3a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3A4 | 16888 bytes |
SHA-256: 470d45e7cca0aa9b1ef7d6238c646cc40189e8865217a1b77cacb238e8feb879 |
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font_02_sfnt_off0000ff64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF64 | 10092 bytes |
SHA-256: 43fb6506975bbfe424202b89bd4bab4e276647a68e4b97174f53e92fc4a7e7d2 |
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