MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, indicating it is likely a phishing or malware distribution lure. Heuristics indicate the PDF acts as a link farm, directing users to multiple compromised or disposable hosting sites. The presence of external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.6941
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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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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://smidgel.ru/uplcv?utm_term=high+dielectric+constant PDF link annotation
- http://pngroup.pl/ckfinder/userfiles/files/60255503220.pdfIn PDF document text
- https://cheeselicious.net/UserFiles/file/lutusujo.pdfIn PDF document text
- https://weddingitaly.jp/images/file/2395808418.pdfIn PDF document text
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/udq7th63okntd73jsp2h6a4sec/teduvilig.pdfIn PDF document text
- http://humanitool.ru/userfiles/file/72995562841.pdfIn PDF document text
- http://mictrogiang.com/userfiles/files/12285458003.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/rubow.pdfIn PDF document text
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af6a7d3c6ec---48633530288.pdfIn PDF document text
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/bitekojebajolufaxunapexo.pdfIn PDF document text
- http://starwindows.ie/ckfinder/userfiles/files/71390285020.pdfIn PDF document text
- http://peak-experience-japan.com/images/blog//file/3894389783.pdfIn PDF document text
- http://pkynfe.net/userfiles/file/31144230242.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098a53c42560---56896432116.pdfIn PDF document text
- https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/6559679ba0d4a0d83d0d8d1d958b1d1b/dotaxedesikefunaja.pdfIn PDF document text
- http://westpakusa.com/phpsites/vertical_living/uploads/file/66151421684.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/m94jkinsrpqc74d6etr56uijai/kizojazofoxikulolemid.pdfIn PDF document text
- https://cuichi177.com/uploads/files/202108171902493826.pdfIn PDF document text
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/o5cooouuh2j7pms69eis13b8u8/2219139404.pdfIn PDF document text
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/8d52d52fb4df5d35c29570c050970d30/44924272983.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///kudukuxoxamibu.pdfIn PDF document text
- http://burragebrothers.org/demo/jolie/beta/userfiles/files/jepumowakotasuget.pdfIn PDF document text
- https://pelicanfinancialnetwork.net/ckfinder/userfiles/files/86421578655.pdfIn PDF document text
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/0b238a041bdef01d4d0d0315c2969e9f/noveje.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16083a2e1c685d---13201164053.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7541e1241e---14212231333.pdfIn 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_off0000dae8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAE8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f2ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2FF | 10640 bytes |
SHA-256: dbd120e09d520f6c2f556e0dc77ae7bab6a383f7cbd3eceaf101d8ea90218804 |
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font_02_sfnt_off00010b03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B03 | 17304 bytes |
SHA-256: e72223bcb3f3a757971162dc1960c44b522ea1e83d3141c126b917cf9aee525f |
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