MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, suggesting it attempts to redirect users to potentially harmful websites. The presence of a link farm on disposable hosting further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://krisoc.ru/uplcv?utm_term=how+to+delete+all+messages+in+android PDF link annotation
- http://bargiel.com.pl/ckfinder/userfiles/files/vezokekuw.pdfIn PDF document text
- https://thehouseproduction.net/file/nuripujuginajulolonaz.pdfIn PDF document text
- http://showdoimovel.com/files/files/72421494497.pdfIn PDF document text
- http://roocenter.ru/upload/file/dowukizubugimefos.pdfIn PDF document text
- http://ambartakip.net/belgeler/file/sofapipupeseni.pdfIn PDF document text
- https://www.adoz.cz/ckfinder/userfiles/files/64773882367.pdfIn PDF document text
- https://www.tulsarad.com/my_content/js/ckfinder/userfiles/files/71227554142.pdfIn PDF document text
- https://pankajplast.com/ckfinder/userfiles/files/bedadizirasafadejoloxagi.pdfIn PDF document text
- http://crisismobile.com/ckfinder/userfiles/files/worepe.pdfIn PDF document text
- http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/geleretoduzamolawupimoze.pdfIn PDF document text
- https://baxsporthorses.nl/userfiles/file/sovigorifokavinijubofoka.pdfIn PDF document text
- https://shinko-tw.com/UserFiles/file/60514670172.pdfIn PDF document text
- http://wonikquartz.com/upload/editor/file/1630960590.pdfIn PDF document text
- https://unaizahic.com/Files/files/75432982566.pdfIn PDF document text
- http://xn--d1achljw0b.xn--p1ai/content/upload/surofofunazowusaberame.pdfIn PDF document text
- http://inkjetartandimage.com/Uploads/file/98625133408.pdfIn PDF document text
- http://szyoujin.com/UploadFile/file/20210911081106189.pdfIn PDF document text
- https://www.douggoodkin.com/admin/ckfinder/userfiles/files/91105672748.pdfIn PDF document text
- http://dorisemitchell.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/noparur.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135f18f7df01---gozegezixu.pdfIn PDF document text
- http://itemclinicchina.com/ckupload/files/78807593523.pdfIn PDF document text
- https://securitydm.rs/slicice/file/45451360190.pdfIn PDF document text
- http://mediasingrid.com/js/new/fckeditor/userfiles/file/zolegilulaluxifavupar.pdfIn PDF document text
- http://alhambra.kopanramen.com/uploads/files/99939771996.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16142b403b7e8b---miboboxukevupikuzafaxeda.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_off0000ce65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE65 | 17068 bytes |
SHA-256: 5c5fa8848639f3b6696b0405068e9dcd6f66a1b647a09c3c9ef1f7944b7b3410 |
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font_01_sfnt_off0000fa3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA3C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011253.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11253 | 10668 bytes |
SHA-256: 57a5295f6c6cc9473c7130ae5fa68075bf6aef8bab7f288577f6aedf8e777dfa |
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