MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains multiple heuristic firings indicating malicious intent, including random URL links and a link farm on disposable hosting. ClamAV detection and ML classification strongly suggest this is a malicious PDF, likely a phishing or trojan delivery mechanism. The presence of a 'download button' lure further supports a social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=android+10+ui+kit
- https://dwitunggaljaya.com/sitefiles/file/51029765705.pdf
- http://propack-th.com/image/upload/File/39646119297.pdf
- http://ville-dammarie.com/ckfinder/userfiles/files/70625482016.pdf
- http://assessmentinsight.com/ckfinder/userfiles/files/risunawekiwavejakamenager.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16137803004067---16991039476.pdf
- http://gzhangqin.com/uploadfile/files/46471340047.pdf
- http://ckrestaurantgroup.com/ckfinder/userfiles/files/rofufasuxa.pdf
- http://ssss-sangam.com/userfiles/file/50763687579.pdf
- http://anapro.com/ckfinder/userfiles/files/31323014983.pdf
- http://studioghittigargnano.com/userfiles/files/40223799443.pdf
- http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/pexukato.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16136af7ce4011---fabutubizadonarolo.pdf
- http://donghotam.com/luutru/files/239139329.pdf
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/63752413768.pdf
- http://thebrownbag.vn/upload/files/kozudisalilumadowa.pdf
- http://mamadona.ru/ckfinder/userfiles/files/jofij.pdf
- https://angelsolutions.ro/ckeditor/ckfinder/userfiles/files/22649891236.pdf
- http://sambometal.com/dataroom/file/81374551144.pdf
- https://suruburi.net/mm/file/20274682655.pdf
- http://1yunnan.com/ckfinder/userfiles/files/lilupewupopipove.pdf
- http://enidental.com/userfiles/file/20210907065103.pdf
- http://canoto.us/Images_upload/files/19881417859.pdf
- https://dunaweb.co/bg_image/files/kabinebexexatosapuminefen.pdf
- http://studiocariola.com/userfiles/files/23521643146.pdf
- http://pamatudarbai.lt/ckfinder/userfiles/files/jukalusojapinobejawubi.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_off0000b270.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB270 | 16792 bytes |
font_01_sfnt_off0000ca82.bina101bc9d922994f1cae16266e20c8f6aa05dd62b89643426f48080b9355c17ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA82 | 14900 bytes |
font_02_sfnt_off0000f054.binf6b979de12bf36a96968538e4509eef2ac91483d34fccc4dbb4435c8ef9a457c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF054 | 10080 bytes |
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