MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous external links, many pointing to compromised CMS upload directories, suggesting it functions as a link farm for phishing or malware distribution. The presence of embedded URLs and the overall structure strongly suggest it is part of a spearphishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://crysiq.ru/uplcv?utm_term=define+gdp+and+gnp
- http://apricomm.com/userData/board/file/26537248053.pdf
- http://aucoindeshalles.com/menu/file/xinutuzedolunoliliri.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094cfa5190ed---peboxurij.pdf
- http://dietmoiquangle.com/webroot/img/files/89759829225.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160912e5bba815---27500586542.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/55udkq583d2g8b29e4l8ttdrnl/30824271587.pdf
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b35f5570d---29873406385.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/df10f825fe7b5c5d1b82c3b48560fe08/29188418089.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/p1ur42j4obt8a58vnspkgt3q0n/milogivizeti.pdf
- http://jullien38.com/ressource/site-image/files/64182342034.pdf
- http://cz-synergy.cz/data/file/buvidevamesetip.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/59hn1tl48ro2fhkiks5ppi1olc/sarulogawewalumepu.pdf
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/nsd5k04lrfcid5e1duv06pbt9h/78699065533.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160748eca053d5---93859395777.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d5a364024---70387690944.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb71c9c8998---19273599803.pdf
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/eacc74d6d07966046c07e0d8ea8739e9/gokexaxamaj.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/sp1mo9l6i5cogi0hupgmd28dpr/45709591164.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c717f99a7d5---66713841932.pdf
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160af85f9012f5---rulexoxedezatimozixogax.pdf
- http://www.alexgis.com/siteuploads/editorimg/file/37760303983.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_off00015f1e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15F1E | 16792 bytes |
font_01_sfnt_off00017735.bin94554937666e892afcfadb251da4e4b77c113255043e27e63c64e7e7912c9963 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17735 | 10140 bytes |
font_02_sfnt_off00018db6.bin82557c964530a73a5bf3a7471ba8cc9611b760141e4780780e1d2bab9c6353d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18DB6 | 18528 bytes |
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