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 detecting it as a phishing trojan. The document contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the overall structure indicate an attempt to deliver a malicious payload or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://nomylo.ru/uplcv?utm_term=meditations+-+marcus+aurelius+pdf
- http://geobrofab.com/clients/d/da/da7cd3953015cd63472398095fc1fcdd/File/kukasowa.pdf
- http://amoy-art.com/Upload/file/1254010764.pdf
- http://hitecds.com/userfiles/file/47132828201.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075a65b168ef---wavado.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0b25a80b29---20383024198.pdf
- http://unnatiwelfareorganization.com/ckfinder/userfiles/files/zagusewinuvikidedakuzoku.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/17f8422c44427664b79813d06f72b87a/8050715582.pdf
- http://americanpetrochemicals.com/customers/CMS-IMAGES/file/dosutubepug.pdf
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160b120584f043---67874792458.pdf
- http://reanda.com/jingkelun/userfiles/files/20210531025937.pdf
- http://www.oteliapelsin.ru/ckfinder/userfiles/files/20112125260.pdf
- https://delta-relay.be/userfiles/file/xibibusageguluzapid.pdf
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/fjtm8u33t1ubi81nn2rniieap2/pevisuze.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/0e30d370915406acff7eb490d2267f7c/17087963431.pdf
- http://africareview.in/userfiles/file/70137049032.pdf
- http://sutinlawkrabi.com/ckfinder/userfiles/files/kobibo.pdf
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/7aad61a898511b27a25f03f8ea8117d0/90358472303.pdf
- http://opersan.com/file/76857107504.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e07e0c7a50---zedurupuvetaxusumuram.pdf
- http://honyi.tw/ckfinder/userfiles/file/gikiwiwasipisutedafugo.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-8-26/20210826101654897685.pdf
- http://csc010.com/userfiles/file/20210803025628_gkxtve.pdf
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160946ebe6814a---zijepaxejexomusoke.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/drq2j7bofpah233l8m8413uef6/51678386691.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_off0000e618.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE618 | 16792 bytes |
font_01_sfnt_off0000fe2a.bin0615682a81e5f8598b882806ae7ac1d258fd14f31f98fdca45df1f72cda3e1c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE2A | 18328 bytes |
font_02_sfnt_off00012d21.bin3b540e7a6081c99ff1d4f7f51966304649000da5a6335c295bb8a76e97c86a5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D21 | 10908 bytes |
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