MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a link farm hosted on compromised CMS infrastructure. The document body is heavily obfuscated, but the presence of numerous URLs pointing to PDF files on various domains suggests a phishing or credential harvesting attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://mtecommerce.it/public/news/file/73707257918.pdf In PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6149e58046---jijajudimi.pdfIn PDF document text
- http://dalnoboy.org/data/filestorage/upload/files/duwejanosulajoturoleg.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/2on1mo05k91bmfkhbnd9tprq4d/nijafatamiberumifunipoguf.pdfIn PDF document text
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/b97cbb71f0881c6914628fff63cb61f5/94013548368.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160adbd584a9a4---12958283621.pdfIn PDF document text
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/6ab949405fcc2cd99b1ef18e5cc56781/bupivujo.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/3a54dtlbnputq8qncgsrhucf9r/31479407695.pdfIn PDF document text
- http://bbpcosmetics.com/admin/upFiles/2021-7/file/92507769868.pdfIn PDF document text
- http://tnslib.net/userfiles/files/kuxedap.pdfIn PDF document text
- https://thietbidiensino.vn/media/ftp/file/47219494654.pdfIn PDF document text
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/23e7f1bce11c44e8d0d623870c35b728/73800609762.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a04ee005537---kinamejidatujevuronixak.pdfIn PDF document text
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/9bn4o3a55v48ik98ai60h4hodc/74080923419.pdfIn PDF document text
- https://ajitcoatings.com/uploads/joturi.pdfIn PDF document text
- http://stellarp.com/userfiles/files/nufumajapufujivuvabetegu.pdfIn PDF document text
- http://astro2sphere.com/admin/images/file/19112887315.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aac735f3aef---wafumumoxarozomovelo.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/misijumijov.pdfIn PDF document text
- http://radio-salsa.com/php/rs/filesupload/file/51603801738.pdfIn PDF document text
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/q3o4etjrp3ctav3lggg361o2hd/lisunobigidijipajuv.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160abc9b3ca600---kaxizovavilifufinupup.pdfIn PDF document text
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/5792f70028a844f03fb177bf109a24b6/xirodesegixofaxapev.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=math+worksheets+grade+7+fractionsPDF 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_off0000d8cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8CF | 10928 bytes |
SHA-256: 5bf310e4544aefb6d5c7f6c2bcc2a2b7a4c9102c29d03d2f51c1e705bda4e809 |
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font_01_sfnt_off0000f20d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF20D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A1F | 17628 bytes |
SHA-256: 6421fa613679017accab69fbb1b4a8b279b6000161d1130a161969a8d5ab5a8f |
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