MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a URL with 'utm_term=activation+code+for+autocad+2017' indicates a phishing lure related to software activation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://pistant.ru/uplcv?utm_term=activation+code+for+autocad+2017
- https://goldfieldssanddrags.com.au/ckfinder/userfiles/files/lolidunogiwovenamazegigi.pdf
- http://ranaghatpchsschool.org/userfiles/file/42256139233.pdf
- https://tjp2-hotlink-j3t.com/contents/files/91161279175.pdf
- https://kompaspt2.com/contents/files/98140413351.pdf
- http://khiensa.com/UserFiles/File/40979473026.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/i2ds9lss072a7glrjjoju2fdpv/79658827529.pdf
- https://stillwaiting.org/userfiles/file/86637179585.pdf
- https://blueparadise.pl/userfiles/file/51711613476.pdf
- https://sananselmo.com/wysiwygfiles/file/83680616928.pdf
- http://fohow77.ru/upload/file/lupekumisewuzanosalusitul.pdf
- http://fsnmmaterials.com/UPFILE/userfiles/files/2463154068.pdf
- http://daglichtfilters.nl/ckfinder/userfiles/files/nixarigop.pdf
- http://mg001.cn/upload_fck/file/2021-9-22/20210922231519659453.pdf
- http://indianspringhomes.net/userfiles/files/87224061674.pdf
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/0d97577d806b7a094e39142164ffacec/vebisepuxevafisi.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/b2640c3e2ddff8e472756eaa7d6ea75b/50787683083.pdf
- http://vuatoyen.com/uploads/userfiles/file/jizosu.pdf
- http://anduong-nhatthanh.com/uploads/news_file/81354087651.pdf
- https://tempegaring.com/contents/files/lugirotixozika.pdf
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614e3421bdf42---bomavivofit.pdf
- https://hilanguage-com-tw.triangle-design.com/files/14123718700.pdf
- http://restravel.ru/ckfinder/userfiles/files/57643524514.pdf
- https://hkbca.org/UploadFiles/file/20210901220216152.pdf
- https://thebillionbottom.com/business_school/uploads/file/fugug.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b410.bin8f3a101db0c8067f1213801c1aa6820b50deb17fb05f6ec777a3fd13491cd4b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB410 | 18336 bytes |
font_01_sfnt_off0000e2d0.bin1d536862f332c7cd1486d058c2e5cf92eff4665bad198a856895a505f87c4e03 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2D0 | 10744 bytes |
font_02_sfnt_off0000fbdd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBDD | 16792 bytes |
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