MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for delivering malicious payloads. The presence of numerous external URIs hosted on disposable domains, coupled with a high ML classifier score and ClamAV detection, strongly indicates malicious intent. The embedded JavaScript likely facilitates the download and execution of a second-stage payload from one of the provided URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9930
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://allytemp.ru/uplcv?utm_term=mcdougal+littell+algebra+2+answers+pdf PDF link annotation
- http://wsp.pl/userfiles/file/bijaxiduposofi.pdfIn PDF document text
- http://prplus4u.com/ckupload/files/fukarenu.pdfIn PDF document text
- http://carsonpokebar.com/uploads/files/voduwiwefino.pdfIn PDF document text
- https://gionggiacam.com/ckfinder/userfiles/files/popawajiva.pdfIn PDF document text
- http://deltools.com/userfiles/file/ziguvidalorudux.pdfIn PDF document text
- https://successalpha.team/upload/files/bifisizenir.pdfIn PDF document text
- http://goodlife88.com/uploads/files/42364091333.pdfIn PDF document text
- http://wjcopy.com/upload/files/65245873504.pdfIn PDF document text
- http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/94768296465.pdfIn PDF document text
- http://tl-maskinfabrik.dk/userfiles/file/zusumuzojunanujede.pdfIn PDF document text
- https://highlander-inn.com/assets/userfiles/files/munafopabiwit.pdfIn PDF document text
- https://stoneappeal.in/FCKeditor/file/lumadimur.pdfIn PDF document text
- http://jandebruijn.com/uploadimages/files/62672634632.pdfIn PDF document text
- https://cultureresortpokhara.com/assets/userfiles/files/83748510224.pdfIn PDF document text
- http://basumati.com/app/webroot/ckfinder/userfiles/files/lawitekeravokuxonetef.pdfIn PDF document text
- http://vinczeandlaszlo.com/upload/pabupabole.pdfIn PDF document text
- http://www.ishvani.com/www/js/ckfinder/userfiles/files/tevodujapevirubixinura.pdfIn PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613aea11f0024---fodogefik.pdfIn PDF document text
- http://pitchdecor-construction.com/user_img/files/waxotajube.pdfIn PDF document text
- https://krossi.ru/images/content/files/26562676034.pdfIn PDF document text
- http://kustari.net/userfiles/file/nuvexilafesufak.pdfIn PDF document text
- http://ihdbd.org/upload/files/xepewej.pdfIn PDF document text
- https://lederstuehle-shop.de/ckfinder/userfiles/files/dejosedojovirumu.pdfIn PDF document text
- https://rotterdampools.com/contents/files/wovudimed.pdfIn PDF document text
- http://zussobrance.sk/grafika/dokumenty/36712103355.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_off00011539.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11539 | 11232 bytes |
SHA-256: 7a22e35c96d9da03b967c9bbf1df41eae40d18d6584d019652a24fe60b3e215e |
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font_01_sfnt_off00012f66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F66 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014778.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14778 | 19048 bytes |
SHA-256: 8acc154983b89c61ec4d4b05f478c0a83974288c2fed58a6bde24db0e336b072 |
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