MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous external URIs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://ketchas.ru/uplcv?utm_term=proof+from+the+book+pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f86982dd51---duburowetexo.pdf
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160bd354f32a08---doremesinidukaxatef.pdf
- http://teechart.com/uploads/images/files/duvawujewurodarerexeb.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c926096db14---64381706081.pdf
- http://www.phuongdonggolf.vn/app/webroot/uploads/files/jujapubexizuxoxaronaroxaf.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/5dc00cf89137950d4d0fe68a840d904a/nuxevuzuzatofalazera.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609d688985f85---pejef.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/uh1jq067eo39uffbtqfu1tdtl1/noruxusakifufupuf.pdf
- https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/0268bad552cff108642525e7100f7d13/kezamawabevufuludufa.pdf
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/q96nblj7cnh261ic39khuch7d5/wazukutapinewitokazobij.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094de37a60cf---94314826181.pdf
- http://rauvuonsach.net/images/uploads/files/zevajojizore.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca7f4b7e13---fetowavebolegudosori.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1608539619e4b7---8203942530.pdf
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/462290be65d91a770957804d81f65d7c/zuzeduluxogoxaxazekijela.pdf
- https://autoandtruckrepair.net/nbloom/fckuploads/file/venix.pdf
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1609a1b086cd59---mabifo.pdf
- http://hongshengfish.com/uploadfiles/2021051320191562464.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/7712640f96ae2b2bda01d428975fb733/53801222673.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd68396968---45806101223.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/sb6rhho7tu9kf24dj7v9sbtskf/xukuwaki.pdf
- https://aravlicraft.com/cmsCart//upload/file/49896704965.pdf
- http://ccspevents.com/clients/24998/File/gidigovubazelukaf.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_off0000f9e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9E1 | 16792 bytes |
font_01_sfnt_off000111f3.bin98c01a56b6f6815267b175f7de81e348bdbcd338a8c8992f4f8e12e98b4cacc1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111F3 | 17844 bytes |
font_02_sfnt_off000140d8.bin83645e07354ab1246ddb0baab7f59abea15137dd1b1778848c5a58bce7b8cf2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140D8 | 10424 bytes |
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