MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ClamAV as 'Pdf.Phishing.Trojan' and an ML classifier indicated a high probability of maliciousness. The document contains a link farm with numerous URLs, many of which are hosted on disposable domains, suggesting an attempt to distribute malicious files or lead users to phishing sites. The presence of a download button heuristic further supports the phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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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://xingzhongjing.com/userfiles/file/20210908153336_1907520277.pdf In PDF document text
- https://testgit.begurholidays.com/uploads/userfiles/files/66948886320.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/161316c7a91e73---66394219347.pdfIn PDF document text
- http://aorganboys.handyfriendship.com/upload/files/puwubekosuwatowoxurided.pdfIn PDF document text
- https://unibel.pl/pliki/upload/file/63199713196.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133a913d8bb3---23245488142.pdfIn PDF document text
- http://hoadon-dientu.net/images/files/29359831592.pdfIn PDF document text
- https://maychieuvinh.vn/upload/files/61417442307.pdfIn PDF document text
- http://simsvizag.com/contentimages/file/lazupopenufoguforubi.pdfIn PDF document text
- http://abwcolley.com/uploads/files/xovajulewigelejodol.pdfIn PDF document text
- http://ryyw.com/upload/files/2021/09/202109041945428833.pdfIn PDF document text
- http://tianlanip.com/filespath/files/20210907135039.pdfIn PDF document text
- https://kokomanis.com/contents/files/vanar.pdfIn PDF document text
- https://cplastik.cz/data/cms/file/vabamego.pdfIn PDF document text
- https://mauspro.net/upload/files/gidegurame.pdfIn PDF document text
- http://salamino.pl/userfiles/file/20901846597.pdfIn PDF document text
- http://soskuwait.com/outscapes/admin/ckeditor/uploads/ck/files/mozozatabutisa.pdfIn PDF document text
- http://atreve.eu/ubezpiecz/obrazy/file/42426188588.pdfIn PDF document text
- http://nail-free.com/ckfinder/userfiles/files/zaniv.pdfIn PDF document text
- http://fresh-j.info/images/uploadedimages/file/61672332421.pdfIn PDF document text
- http://woodwaysindia.com/uploads/fisamo.pdfIn PDF document text
- http://contextuae.com/resimler/files/19071509336.pdfIn PDF document text
- https://alihuata.com/userfiles/file/jopijugabukibofarilusu.pdfIn PDF document text
- http://pietrek.com/MARCUS/files/file/8724160070.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=network+mode+apk+downloadPDF 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_off0000e878.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE878 | 19776 bytes |
SHA-256: cc199e58fc63b20a3a0d20d876c05723c94ce6e749d3bebfd0772c5e00b73926 |
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font_01_sfnt_off00011b89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B89 | 10448 bytes |
SHA-256: 4190bb0e361d03a6ad2fcb2f2a6b906c49688da1a3b51172983824f6f1bf73ba |
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font_02_sfnt_off00013346.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13346 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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