MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it likely exploits a vulnerability or contains malicious content. The heuristics reveal it functions as a link farm, hosting numerous URLs on potentially compromised or disposable domains, which is a common tactic for phishing or SEO spam. The presence of external URIs and link farms suggests an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://cortabellanews.com/userimages/94330908052.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e30e63b7ec8---1455221845.pdf
- https://fa-vietnam.com/webroot/img/files/juzomogubasogolasuvasafew.pdf
- https://pepinieramontana.ro/ckfinder/userfiles/files/21281921473.pdf
- http://sklepjola.pl/userfiles/file/12096227180.pdf
- http://saipanbooking.com/FileData/ckfinder/files/20210715_1E6F4F703C08A21F.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d86a9863752.pdf
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/08efc8e30a574dd177c91bd3d8b26cdb/92743287915.pdf
- http://worldnaturalfood.com/image/upload/File/4306047749.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/4816f5187fe9abe9774cb9dddb20b026/fuminumubepolemesi.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/e78028b494e0874770684854a2a31160/4804081274.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a5de39b7a46---pisudixi.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160b125181d0bf---rivexoti.pdf
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/pabonokebuzibuzazo.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2cab36cc4f---xotokazirizipuv.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/3e46b9df8be64ded5712d45f66f682d7/sasuvuvuzutov.pdf
- http://timeyear-v.com/userfiles/file/fagok.pdf
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/r4tqf53u70dopbkjeh7e0isoo7/zuxokimatat.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/b69ad8fcb387638e8e9b76bbdee450de/vefiwupibum.pdf
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/ivi4aeftigu2v5rsmlp24690g7/53163582556.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0a073c743---13986123130.pdf
- http://3qbuy.com/CKEdit/upload/files/bubobo.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a70ebbc6ac5---98385741624.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=draw+a+musical+instrument
- 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_off0000f31a.binc192ca788dd4011c92a599b174aca49695d61fb5a30c926441799dbec1f9f323 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31A | 10456 bytes |
font_01_sfnt_off00010ae7.bin6e199e6b4a06b20de04ce020c7c464bcf9100376a3a08a1dbe9d8aeb3ae28896 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AE7 | 16660 bytes |
font_02_sfnt_off000135e6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135E6 | 16792 bytes |
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