MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs point to compromised WordPress upload directories and disposable hosting, suggesting a phishing or malware distribution scheme. The file's structure and embedded content indicate it is likely part of a spearphishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://smidgel.ru/uplcv?utm_term=types+of+factions
- https://noddy.nu/images/file/guluruvuwegajekiza.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160c9562c79d42---wuzazalufof.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/ab793ps717nmgh7gpoc079hm7h/dafejaraletubatugudukonu.pdf
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/9ec33027b8a5dfc793128952898c7728/texodelawijitikakud.pdf
- https://asthasupermarket.com/userfiles/file/pususopilikuvifojo.pdf
- http://iccj.jp/images/uploads/fckeditor/file/laradebubajafibexaruviv.pdf
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/e6d8f5363a76ecd79cd784e4d2b9525c/suxezokemejuk.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/5e9cfc831ef3269585cc25937816769f/18796812199.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/flbqj04js19i00dt7vaqoiem65/59274087300.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607011900c771---76642344858.pdf
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608963fab0931---ruvopasib.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/9irhnmmjh3njm72ea6h5rldcr6/33811698983.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccd85b5bf0---91740190371.pdf
- https://alutat.com/data/file/82714186576.pdf
- http://canphantich.net/Images_upload/files/5798774631.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609b81618f952---kemuzinuduxilazofejuzatu.pdf
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bb8db43d5d4---56184348969.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1ec9936e00---86860723879.pdf
- http://alarmy-kamery24.pl/userfiles/file/82846131669.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609020524ba8f---pelirosibixiboluzoku.pdf
- https://copperscraphandlers.com/ckfinder/userfiles/files/19951522447.pdf
- http://fqcycpa.com/jingkelun/userfiles/files/20210617110553.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f24c3ea96f---77581583291.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_off0000e940.binf8e9106b3c915b9b02c19b96f5a8ed5843744d7d24bd67d84cfc2e952b60cc40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE940 | 10404 bytes |
font_01_sfnt_off00010105.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10105 | 16792 bytes |
font_02_sfnt_off00011917.binf4421f28acf5b6ac50f7d0a85873f6745be0dd086401a6518f5f0e745aa562b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11917 | 17760 bytes |
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