MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The sample is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other domains. These links likely lead to further malicious content or phishing attempts, indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 https://laborke.ru/uplcv?utm_term=how+do+i+sign+up+for+kaiser+senior+advantage
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16084392d451cf---xigosofivozubavugexi.pdf
- http://bugaboo-buffalo.eu/UserFiles/File/40076923348.pdf
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/paripiwusavipajebowugo.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bffaae98217---8133763014.pdf
- https://hometeamcorp.com/images/usr/darufarasudivivonep.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b6262806a5e---bipefafomesajebofafami.pdf
- https://southafricapools.com/contents//files/42219175543.pdf
- http://spy-military-labs.com/userfiles/file/jivegenusajavemavelatifa.pdf
- https://www.temsilcifirsatlari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077b1de2f280---58979431021.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ha5ot8avu0822mv61pdntugvk5/fevutapinadezi.pdf
- https://mumegram.com/userfiles/file/60932008957.pdf
- http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/37982861265.pdf
- http://oticonshop.com/ckfinder/userfiles/files/mapofubasakorokaturaxozu.pdf
- http://ttmplus.com/userfiles/files/miwosefeve.pdf
- http://e-district.org/userfiles/file/14306446492.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/9dc416df6108af179f45a2d4cada79a5/7253036032.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079ca1d60b56---wozezejisovixa.pdf
- http://unibeauty.com.br/ckfinder/userfiles/files/20053025258.pdf
- http://berbun.com/user_img/file/6105957038.pdf
- https://anmimar.com/royal/userfiles/file/76992077395.pdf
- http://geonatlife.es//ckfinder/userfiles/files/juvoditumefovamiwedutezex.pdf
- http://kolkandkolkdesign.com/site/data/ws/files/fefajubuvid.pdf
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846144eee6b---nixolubiwanuzifikeratuwit.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/d12c8b31ffdb878beca48447adc4b8f2/sosok.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ebbd.bin47272af003253c1a8d959e9966fb63c4805c23b2947048512d96f29446c26f35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBBD | 1988 bytes |
font_01_sfnt_off0000f4dd.binee470ac00f39ac180978259c975eb876b87601bae2d29efdd8b261b1a7eddb58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4DD | 10960 bytes |
font_02_sfnt_off00010e3d.bin4010f439b997c8cd961ceaf97f748cd3199dc47d3818f3607579357b7f004b60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E3D | 17748 bytes |
font_03_sfnt_off00013d46.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D46 | 16792 bytes |
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