MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external resources, many of which are hosted on disposable domains and appear to be part of a link farm. One heuristic specifically flags a PDF link to an algorithmically-generated URL, indicating a potential phishing or malware distribution attempt. The ClamAV detection further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3891
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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 http://fsnmmaterials.com/UPFILE/userfiles/files/jodofilazedonuzesazufol.pdf In PDF document text
- http://vinhomeshaiphong.net/app/webroot/img/files/50361668117.pdfIn PDF document text
- http://195exim.com/datas/files/zimajuj.pdfIn PDF document text
- https://khotelmarket.com/FileData/ckfinder/files/20210912_EC6F14335A836F13.pdfIn PDF document text
- http://nuovartea.eu/userfiles/files/fikobesagaloboliboxuloxo.pdfIn PDF document text
- https://bahamianbrewery.com/ckfinder/userfiles/files/19533681938.pdfIn PDF document text
- http://gdlianyu.com/uploadfiles/file/kirexomax.pdfIn PDF document text
- http://ageofwonders.buka.ru/sadm_files/44245641461.pdfIn PDF document text
- http://viswinkelindex.nl/images/uploads/43209749961.pdfIn PDF document text
- http://alocainghien.com/uploads/userfiles/file/suzeji.pdfIn PDF document text
- http://gzmzwl.com/Uploadfiles/files/19064975187.pdfIn PDF document text
- http://www.sindafaz.com.br/admin/editor/ckfinder/userfiles/files/48737701892.pdfIn PDF document text
- https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/lifasakapar.pdfIn PDF document text
- https://lanna-flyingclub.com/ckfinder/userfiles/files/titiwilelufudurega.pdfIn PDF document text
- http://www.radio-kum.si/data/files/41188700486.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141629e55b09---bevifamenodu.pdfIn PDF document text
- http://market-oborudovanie.ru/upload/file/72492276996.pdfIn PDF document text
- http://hoinhikhoavn.com/img/files/20726165924.pdfIn PDF document text
- https://media-get.com/userfiles/files/nexagupuvogatakagakuzap.pdfIn PDF document text
- http://pileki.com/imgup/file/55594773320.pdfIn PDF document text
- http://serbanindustrialconstruct.ro/uploads/files/46636443415.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/wuxewe.pdfIn PDF document text
- https://upbilbao.com/ckfinder/userfiles/files/1810328354.pdfIn PDF document text
- https://kiaavcilar.com/upload/ckfinder/files/37639418124.pdfIn PDF document text
- http://space-edge.com/upload/files/dupawusu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=123movies+unblocked+site+2020PDF link annotation
- 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_off0000c146.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC146 | 18232 bytes |
SHA-256: db66e1fe4c7461136012489c167bedec217fda44010e4f3b24bd4f8ef7fd30fb |
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font_01_sfnt_off0000f070.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF070 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010887.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10887 | 11036 bytes |
SHA-256: a6a7e79c7e008ac53338b50398672cdf932ab412df95fbca618dad43cd6604ff |
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