MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics, including a medium-severity rule indicating it's a link farm on disposable hosting. The ML classifier and ClamAV also identified it as malicious. The numerous embedded URLs suggest a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 5
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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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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 https://synerhu.ru/uplcv?utm_term=professor+snape+potions+class PDF link annotation
- https://tktravelkorea.com/FileData/ckfinder/files/20210909_21A7DDDEC77F8FA3.pdfIn PDF document text
- https://anbuadidravidarmatrimony.com/ckfinder/userfiles/files/gujebagujetuvitowe.pdfIn PDF document text
- http://stitesattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gupoxozomas.pdfIn PDF document text
- https://dansobentre.net/uploads/file/36692307404.pdfIn PDF document text
- https://bestofbucerias.com/upload/file/38328973832.pdfIn PDF document text
- https://aathichudi.org/userfiles/file/kiburi.pdfIn PDF document text
- https://bharatceramics.in/ckfinder/userfiles/files/suzuzewazigika.pdfIn PDF document text
- http://xingzhongjing.com/userfiles/file/20210915202838_1109438379.pdfIn PDF document text
- http://market-oborudovanie.ru/upload/file/bijuvixatukepade.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/2d5ead401e2647463bfb41f4c43958d5/88785672537.pdfIn PDF document text
- http://www.mueblesgamez.com/ckfinder/userfiles/files/dikifizoxemux.pdfIn PDF document text
- http://madveras.com/ckfinder/userfiles/files/31528191854.pdfIn PDF document text
- http://alrehabourhome.com/userfiles/files/jikesetopoge.pdfIn PDF document text
- http://zl369.net/userfiles/file/lixugozufuwili.pdfIn PDF document text
- https://lifesmart.ro/ckfinder/userfiles/files/durokigibonutir.pdfIn PDF document text
- https://akamercedes.com/images/uploads/files/ruguxumovajexurodesibozo.pdfIn PDF document text
- https://thietbixanh.net/uploads/files/bofituvogimajiloxetoni.pdfIn PDF document text
- http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/peburefujedetikeximu.pdfIn PDF document text
- http://nesemlak.com/test/images/uploads/files/27820798789.pdfIn PDF document text
- http://salamino.pl/userfiles/file/14843088531.pdfIn PDF document text
- http://edilcfcostruzioni.com/userfiles/files/sukabozowedevesazu.pdfIn PDF document text
- http://donghozibistore.com/luutru/files/62175088137.pdfIn PDF document text
- http://hieuchuan.com/upload/files/36987140635.pdfIn PDF document text
- 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_off0000aed0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAED0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c6e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6E7 | 10472 bytes |
SHA-256: 3597df07e061de14a15f73d705b7ff60606d54fc64249d0fbd0f02be860a039b |
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font_02_sfnt_off0000ded8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDED8 | 16560 bytes |
SHA-256: 7d7b9b9d0ea469512f163aad48b8da8ed38783a108425e80654a63d8fbadccf5 |
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