MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious. It functions as a link farm, containing numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute phishing content or further malware. The presence of multiple external URIs and a link farm heuristic indicates a strong likelihood of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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 http://zlato-invest.cz/upload/files/jowokosukopuv.pdf
- http://www.sphotobooth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d1974b0bb---50627432433.pdf
- http://budaors.varosom.hu/userfiles/files/86170852818.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c5a1ce3cead---21650389503.pdf
- http://ifaistos.reality.gr/~triantaf/images/file/denofofisir.pdf
- http://rnralpha.cz/res/file/nozinixivatubigonoz.pdf
- http://duonglaohanoi.com/userfiles/file/rerijuxiv.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/71360289850.pdf
- https://aslplastic.com/ckfinder/userfiles/files/kixasi.pdf
- https://coastalholidayproperty.com/ckfinder/userfiles/files/53584902506.pdf
- https://daotaolaixesontay.com/uploads/file/vakovulesisirunabodaw.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb63823d900---tivanodevil.pdf
- http://skyline64reunion.com/clients/e/ec/ec378541aa9b73e2b99de5ca5545ec21/File/gowuwumefop.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/df4bc6e64c1541bccebe1cb1ef050622/59694769584.pdf
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075d632624b8---11720741216.pdf
- http://seamacros.com/upload/file/36292537502.pdf
- http://perchegouet.com/ckfinder/userfiles/files/difuwapukawemagib.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a50395473c---18649890377.pdf
- http://clainvest.pl/userfiles/file/lilube.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608ffcc44618c---nidiworunivuzuxakasi.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c156322f690---liponojojobikadagexikor.pdf
- https://carrieres-pierre.com/userfiles/file/41383207117.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a359271b1eb---xukopizag.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086dc0446d04---wabebobofu.pdf
- http://makesomenoise.hu/upload/file/zebawefam.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=platinum+physical+science+grade+11+pdf+download
- 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_off0000cafe.bin515ddeef8e09709afa953b8ff749eae233dedefda87f2c59a20d264e30cc2fb6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAFE | 11420 bytes |
font_01_sfnt_off0000e5ac.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5AC | 16792 bytes |
font_02_sfnt_off0000fdbe.bind9c65740dfc24c932456268dd049cf4f99f9e3697a9920615de1573a1db48ee6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDBE | 16540 bytes |
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