MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a phishing or trojan payload. It contains embedded JavaScript and a link farm pointing to various URLs, some hosted on compromised CMS uploads, suggesting an attempt to redirect users to malicious content or downloads. The primary attack vector appears to be a deceptive lure disguised as a search result for free PDF downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 7
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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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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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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://garglob.ru/uplcv?utm_term=amish+tripathi+books+in+gujarati+pdf+free+download
- https://hagakure.by/upload/editor/files/karevofozalufajigunudoro.pdf
- https://prettygreekvillas.com/admin/fckeditor/editor/filemanager/connectofile/32406866035.pdf
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/6f96e6a33f75c113445825bc67a6bb14/nivas.pdf
- http://hawaiianhunareiki.it/file/5594410262.pdf
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210908005955.pdf
- http://baove247.org/upload/files/zuliwerof.pdf
- http://bright-inter.com/file_media/file_image/file/10960871160.pdf
- http://vincitydata.com/uploads/ckfinder/files/9112312001.pdf
- http://clinicaveterinariailmarzocco.it/userfiles/files/10117098447.pdf
- http://i-daa-wl.de/userfiles/gidotasevav.pdf
- http://teraval.cz/res/file/demoxobowirolazume.pdf
- https://bonekarusa.com/contents/files/52973905879.pdf
- https://istanajp.com/contents/files/34605697222.pdf
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131d0a72138e---9184520961.pdf
- http://safiorida.nl/operatori/userfiles/file/vagevanifewikuratopa.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16150d52edf56c---2633847654.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/41436180791.pdf
- http://zbirozskepodzamci.cz/userfiles/34612526100.pdf
- https://groupunsur3.com/contents/files/gumexosulekive.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/db72f91761b13334ab1bfc3de07dbbf4/42261552926.pdf
- https://paeonia.ch/userfiles/files/jamijifilokaxekiporozoj.pdf
- http://48bulls.com/js/upload/files/88801261400.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_off0000b06d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB06D | 16792 bytes |
font_01_sfnt_off0000c884.binea25de9b4baeb1b11c3c0cbbaf05c3dcdae183eb114955cd30ac62e37b66eb85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC884 | 11472 bytes |
font_02_sfnt_off0000e313.bin0554c5b037386f73faa0c07f4d9898c53f5974e42d1b936198d4355a04a54c6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE313 | 15384 bytes |
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