MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, with a high heuristic indicating it's a link farm on disposable hosting. ClamAV and ML classifiers confirm its malicious nature, specifically flagging it as a phishing trojan. The primary attack pattern involves directing users to a collection of external PDF files hosted on various domains, likely to facilitate phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 5
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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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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://ehoron21.mn/uploads/files/75344880705.pdf In PDF document text
- http://instit.ac/ckfinder/userfiles/files/8678226439.pdfIn PDF document text
- http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45032414358.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161361f6549fe7---dowuvijunomupumifis.pdfIn PDF document text
- https://taiwancy.com/app/webroot/userfiles/files/bizexaxirutemiwarofipa.pdfIn PDF document text
- https://coherence.cz/userfiles/file/farefedipodadimi.pdfIn PDF document text
- http://k-yoga.org/file_upload/spaw_upload/file/20210909230917.pdfIn PDF document text
- http://sooam.com/files/fckeditor/file/39038851561346efff41b1.pdfIn PDF document text
- http://wolfroccatiassociati.it/userfiles/files/75468617181.pdfIn PDF document text
- https://iphone-odklep.si/vsebina/gesepusab.pdfIn PDF document text
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/ej8dodae8u0isdn5kou8emp5nn/rezabetemanejalalo.pdfIn PDF document text
- http://topp.pl/_topp/file/28223099114.pdfIn PDF document text
- https://dpengineerindia.com/admin/userfiles/file/webif.pdfIn PDF document text
- http://snp-ent.com/files/fckeditor/file/1050623357613c2278bac0d.pdfIn PDF document text
- https://numen-wow.com/userfiles/cloud/files/xasizew.pdfIn PDF document text
- http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/69549659129.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/novinofafapumaf.pdfIn PDF document text
- https://tsafar.ir/basefile/tsafarir/files/detokazufavijiv.pdfIn PDF document text
- http://degrossier.nl/uploads/file/22000562568.pdfIn PDF document text
- http://adriennemason.com/assets/files/difutaduxifulubirijivigaj.pdfIn PDF document text
- http://tianlanip.com/filespath/files/20210906105029.pdfIn PDF document text
- http://agisinfo.ru/uploads/content/files/gopaxukopaferogipi.pdfIn PDF document text
- https://fertilizergranulatorprice.com/d/files/24774816240.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+block+a+site+on+android+phonePDF 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_off0000e98b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE98B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001019d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1019D | 17620 bytes |
SHA-256: cd991ed40e21fc9409eeaa03c8f11b92125800e1120ece57fb64884a50e1d0ee |
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font_02_sfnt_off00012fbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FBD | 10920 bytes |
SHA-256: 06d4b2b9dca205c04592ac044d64699b69284b3cc47d6ecb071b5b9e9e1fbbc4 |
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