MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, along with the ML_NYX_PDF_MALICIOUS and ClamAV detections, strongly indicates malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a phishing or malware distribution scheme.
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://drafthe.ru/uplcv?utm_term=jio+mobile+pdf+app+download
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/mf5oeplhiv9tniqd38bv847nah/98565501672.pdf
- http://thumpamonpally.com/userfiles/file/82275289074.pdf
- https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/9fvc28h8g8s3caj5m017dvop32/16962824065.pdf
- https://kaowei.tw/image/files/20210705_021549.pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/lt4205uts40q44ufnuf3nbof01/37506633266.pdf
- https://melz-feu.ru/upload/fexapatigovasanibibote.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b60d3fa67c8---32099217005.pdf
- http://volareinmongolfiera.it/userfiles/files/37401539502.pdf
- http://sziszolg.hu/editor_up/jikimi.pdf
- http://fotofolliasanlazzaro.it/userfiles/files/rivarugelunaxaxopimupaken.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2b4b1973b---12450484456.pdf
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be7359626c7---xixunasajarifibewufoxi.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/990d08d3e2a7d77a68e5bb6baffc7b45/89750662311.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082a1fca2466---forevowepegijewuba.pdf
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/9dc764eed18aef863199d3ffcfbb3ea2/balexiwa.pdf
- http://barudan.hk/UploadFile/file/20210627122942330.pdf
- https://bellcera.60km.com/upload/files/vofakozalanutuwi.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/ff47a48b3292ad6a677d12f1c48f7e0c/toxuk.pdf
- https://mttrasportisrl.it/dati/upload/file/vironutanapixanaduvo.pdf
- http://speaklifeiamgreatness.com/files/files/simimununosajan.pdf
- http://thebankcardservices.com/uploads/files/kadufinijuvoraxinobejo.pdf
- https://monographie.com/ckfinder/userfiles/files/59172306428.pdf
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610b7a8bdeac7---dubegodafez.pdf
- 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_off0000dd17.binca36959d59b82fdabf38f28995555f7578ea7e2042d399a5fe7ee2ba42f4d334 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD17 | 18040 bytes |
font_01_sfnt_off00010b42.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B42 | 16792 bytes |
font_02_sfnt_off00012359.bin545506562f9bc51ca87ec6da527bacee5c78bdd1bccc40101826a87b889ef2df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12359 | 10508 bytes |
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