MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm, with many distinct hosts and links pointing to disposable or compromised hosting. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. The document body is unreadable, but the presence of numerous external links suggests an attempt to redirect users to malicious or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9834
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://vyveva.eu/UserFiles/File/misirux.pdf
- http://phayaotechno.com/UserFiles/File/60747141888.pdf
- https://bbpartner.cz/userfiles/file/nupabiwumizuwewuno.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c46efbd2f69---xolimirozerube.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/e9b48de0ab94f7469d7693b59bf6fc48/21775080386.pdf
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/b050e47752933075ad3eceece0803476/27756204045.pdf
- https://angkortaxiservice.com/userfiles/file/duwerowo.pdf
- http://cachnhietwin.com/luutru/files/wozudavoxozuxerawevabim.pdf
- http://agnieszkapawlik.com/userfiles/file/64406551164.pdf
- http://nguoigiupviec99.com/webroot/img/files/7314425351.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079a30506b13---sedonumevomakopekibosulok.pdf
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/42672302ae82b5543a5a94e2a907c32d/74015893435.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afc2b20e182---45648676291.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/41050bb30545373a5cda7fd28d6d8586/guxixadiwemogevej.pdf
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/9b115edbcebc626e947d2a3b3ed23fb1/63794869685.pdf
- https://thefencedocumentary.com/adminfiles/file/jowasikaximobixida.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/290904f6b688c02cc3a2c149df097551/fasixefugotivono.pdf
- http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/60431145839.pdf
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6f2ed06c3---95297974647.pdf
- http://willismctyeire.com/clients/c/cd/cd1fd5262213d36872a77bd42df049b7/File/20609017172.pdf
- http://unseenadventure.com/userfiles/file/30618213882.pdf
- http://darec.sk/files/files/werewe.pdf
- http://cottoneauto.it/userfiles/files/wegapibeta.pdf
- http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607506959d56d---60279171004.pdf
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/e2d61e01bfbe245161fc68500c5cc6c8/dabezim.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095467714c09---bujidurovetiragodamizawum.pdf
- http://kasargod.net/uploads/file/meses.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=the+meaning+of+renege
- 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_off0000e36a.bin8638415c243cce517eb33c56abec40343a2233bcc0b30c33121a87f6e3e0b3b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE36A | 18504 bytes |
font_01_sfnt_off000113f2.binbc04f1ee0bd397e7db8b152a4566cc86e882d825438b2da908b7e7d504e7acb1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113F2 | 10312 bytes |
font_02_sfnt_off00012aee.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AEE | 16792 bytes |
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