MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. It contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, a common tactic for phishing or distributing further malware. The presence of external URIs and the overall structure strongly suggest an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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://infrive.ru/uplcv?utm_term=murder+mystery+2+supreme+values PDF link annotation
- http://lexen.ca/userfiles/files/kitenigel.pdfIn PDF document text
- http://prota.ru/upload/files/kuzaravazijotifexaji.pdfIn PDF document text
- http://www.horakgolf.cz/ckfinder/userfiles/files/ligexanadiwupa.pdfIn PDF document text
- http://gtlitalia.com/userfiles/files/tixanifirojazakubo.pdfIn PDF document text
- https://www.vasutaszeneiskola.hu/ckfinder/userfiles/files/jofexu.pdfIn PDF document text
- http://lev-steklo.ru/userfiles/file/ruludedararaza.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/a7422ecc0d078a4dce51bed406850891/64990569710.pdfIn PDF document text
- http://regmac.net/userfiles/files/45702820805.pdfIn PDF document text
- https://genegurumiraclehealer.com/userfiles/file/65072194998.pdfIn PDF document text
- http://blueview.nl/app/webroot/files/userfiles/files/bipaku.pdfIn PDF document text
- http://fajni3333.fun4two.pl/uploads/assets/file/nojirikolimefitorumoloz.pdfIn PDF document text
- https://abyway.lv/images/ck_images/files/nonenusunop.pdfIn PDF document text
- https://la-klamm.org/Files/files/madofutamizokuxotebonit.pdfIn PDF document text
- http://navigator-nsk.ru/userfiles/file/monotatakevewejetamir.pdfIn PDF document text
- https://3drm.bg/uploads/pictures/files/kejuremazusare.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///98948534028.pdfIn PDF document text
- https://vico-immobilien.com/ckfinder/userfiles/files/zafalazo.pdfIn PDF document text
- http://ashokarefrigeration.com/userfiles/file/74845980172.pdfIn PDF document text
- https://www.sherpachristain.org.np/ckfinder/userfiles/files/xewexikar.pdfIn PDF document text
- http://csc0351.com/userfiles/file/20210914121300_1nxj7p.pdfIn PDF document text
- http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/66193643203.pdfIn PDF document text
- https://laptopserwis.com/app/webroot/media/files/59451426540.pdfIn PDF document text
- http://njbeihang.com/uploadfile/file///2021090310141763.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148708bafc68---zubazizojuworuvofezutu.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_off0000b189.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB189 | 10632 bytes |
SHA-256: 40bcfe4420144aaa88d37a5ef86dd96347e47a6b36d8b54f92abf902d3d0892d |
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font_01_sfnt_off0000ca0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA0A | 15692 bytes |
SHA-256: db512f47a6add6c607d94403e91f78b9623b5a3e9f7f2c4343ed776679c04545 |
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font_02_sfnt_off0000f273.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF273 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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