MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that function as a link farm, directing users to external sites. Several heuristics indicate these links are associated with compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9915
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
-
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.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://cructi.ru/uplcv?utm_term=remote+desktop+server+for+android
- http://ozdesignhouse.com/app/webroot/uploads/files/30930371855.pdf
- http://starma.pl/files/file/89377992016.pdf
- https://www.poolsrus.com.au/application/third_party/ckfinder/userfiles/files/53243078177.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ac9657b653---27819757479.pdf
- http://vocal.bpv.su/content/files/files/36025067016.pdf
- http://mrspk.com/ckfinder/userfiles/files/61813004220.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161472e43db7ee---69783832778.pdf
- http://theartofdesign.nl/ckfinder/userfiles/files/18591789270.pdf
- https://rybczewice.pl/userfiles/file/76451285674.pdf
- http://chinazzjx.com/d/files/43248044779.pdf
- http://tuvantindat.com/uploads/2021-09-27/images/files/71220376852.pdf
- http://diversecityuk.com/userfiles/file/xabatuxejuteribizufexori.pdf
- https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/6334775194.pdf
- http://cancercareresearch.com/userfiles/file/17052706672.pdf
- http://brenna-ski.pl/userfiles/file/96732329294.pdf
- http://stark-tools.ru/images/uploaded/56508510858.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/4haem1981lr9n5ib36rpa0lbc5/1018633923.pdf
- http://kprmk.pl/userfiles/file/18878723898.pdf
- https://inprovitecuador.com/ckfinder/userfiles/files/pirovidoputak.pdf
- https://esofagopisa.it/userfiles/file/57904560164.pdf
- http://malopolskiszlakwinny.pl/upload/File/nofibixigabusubamekati.pdf
- https://novsport.com/content/File/61863071015.pdf
- https://ontogepszerviz.hu/editor_up/sebogufejoremekap.pdf
- http://zartmobilia.com/userfiles/file/20210919194747.pdf
- http://songhandiban.com/uploadfile/file/2021091406194173499.pdf
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/6ce23815e62b47c997b39128ee6d9418/xorunanirubufajemenel.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_off0000b685.binadff66e966f3c2835f8484d63c4a83fa2015cd48c77969c768c2e852717a866f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB685 | 16952 bytes |
font_01_sfnt_off0000e184.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE184 | 16792 bytes |
font_02_sfnt_off0000f99b.bin7e1ba80bf728b6644ade0aa60a6c4a13e14e40e4da22edb6e66e3ac54838d7c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF99B | 10816 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.