MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains embedded JavaScript and numerous external URLs, many of which are hosted on disposable domains and appear to be part of a link farm. The primary function seems to be redirecting users to potentially malicious content, consistent with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://laborke.ru/uplcv?utm_term=adblock+free+extension PDF link annotation
- http://odnoklassniki-files.ru/images/uploads/files/97478090615.pdfIn PDF document text
- http://klick-tipp.info/ckfinder/userfiles/publics/files/lizerufelivusafaveluxo.pdfIn PDF document text
- http://hk-keber.de/images/file/22774445820.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/c837cd12aeb396867a450c3db97c786a/12959013508.pdfIn PDF document text
- http://plenaseguroseprevidencia.com/fotosempresa/files/fudarebebewi.pdfIn PDF document text
- https://artemishosp-em.tw/uploads/files/202109221410201303.pdfIn PDF document text
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613897ea8b66d---vakos.pdfIn PDF document text
- http://navigator-nsk.ru/userfiles/file/4393511877.pdfIn PDF document text
- http://daisin1977.com/js/upload/files/duwagezan.pdfIn PDF document text
- http://yachtales.net/admin/userfiles/files/fawagokosupujozuwemewuva.pdfIn PDF document text
- http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/bewabukozuzapejafevenafo.pdfIn PDF document text
- https://eguiders.com/uploads/63784861626.pdfIn PDF document text
- https://fuze-pay.com/ckfinder/userfiles/files/rewor.pdfIn PDF document text
- http://back2wood.de/userfiles/file/somobake.pdfIn PDF document text
- http://gapoom.com/upload/fckeditor/file/92444110615.pdfIn PDF document text
- http://koreabulk.net/userData/board/file/50631625913.pdfIn PDF document text
- https://www.weldcor.ca/public/ckfinder/userfiles/files/kodesiguxepikodabusi.pdfIn PDF document text
- http://compagniaviaggi.gattinonimondodivacanze.it/themes/userfiles/files/xarimexorixamidujonibame.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/upuloromasimoruvuke.pdfIn PDF document text
- https://pankajplast.com/ckfinder/userfiles/files/jarivikolorexejag.pdfIn PDF document text
- http://akademibt.com/resimler/files/36381678869.pdfIn PDF document text
- http://altiro.nl/home/tjerk/file/buzobelofezak.pdfIn PDF document text
- http://neoneophytou.com/ckfinder/userfiles/files/vamavagigakumafameb.pdfIn PDF document text
- http://xn--e42bt3l.net/upfile/files/90797704494.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_off0000b1d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1D5 | 10620 bytes |
SHA-256: c59364386054bb872803e441189be7e945853b22178484c26baadb58ad99d11f |
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font_01_sfnt_off0000ca3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA3E | 17200 bytes |
SHA-256: 5c8822f1723503b565205192d9bafca7f604b2a09c5eac678352176891429f22 |
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font_02_sfnt_off0000f640.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF640 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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