MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to distribute malicious content or phish for credentials. The embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://inwebjor.ru/uplcv?utm_term=android+screen+mirroring+settings
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613078c15558d---zarajinijapafawoga.pdf
- http://napiarsaigh.com/images/guwapodagamaweluxu.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/9fee403ec0b9048d8a2a9aba8f63a15a/fejozovifigexom.pdf
- http://csc0311.com/userfiles/file/20210908214350_49iwjl.pdf
- http://ivankotov.ru/img/lib/file/51987231600.pdf
- http://defhjdr.friend-match.com/upload/files/komad.pdf
- http://rintoyo.com/userfiles/file/zixevesa.pdf
- http://hizirferforje.com/admin/fckeditor/editor/images/file/jokosapegerukifugireg.pdf
- http://joy05.com/_UploadFile/Images/file/kavojaxekeri.pdf
- http://kriosispl.com/cote_dor_import/admin/ckfinder/userfiles/files/mufemisowafokefukos.pdf
- https://charterfori.ir/basefile/charterforiir/files/bipixasisi.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161382895214ff---24430754017.pdf
- https://www.netcorp.hu/data/editorfile/67524615506.pdf
- http://xz-brand.com/ckfinder/userfiles/files/nabepotovusakabew.pdf
- https://bomando.bomsolar.com/uploadfiles/files/dowugomaraxagigojefi.pdf
- http://tajesink.com/Uploadfiles/files/19229446468.pdf
- http://eatatrudy.com/uploads/files/pubus.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/6scel2lnarnaa8g6i4oiovcvl3/lanalukikixoxuwi.pdf
- http://uspeh-kursk.ru/ckfinder/userfiles/files/wirapekorexawe.pdf
- http://goodtraefarm.com/ckupload/files/92217569088.pdf
- http://www.mueblesgamez.com/ckfinder/userfiles/files/tilotinuz.pdf
- https://franciscojaviermoreno.com/DocsCKeditor/files/mirigofexulokuzuteja.pdf
- http://laros.cz/UserFiles/file/kiwujopexar.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_off0000d6b2.bine108ec10656e25000bebfe59c8a28ae23f8bb68d0fa9a3fec4055bf708e72ac3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6B2 | 17256 bytes |
font_01_sfnt_off0001031f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1031F | 16792 bytes |
font_02_sfnt_off00011b36.bin7267638c30cf92eaed09d69d8a27e214eb30963e967242aa54db196425f5b4cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B36 | 10488 bytes |
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