MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a phishing or malware distribution campaign. The embedded URLs, such as 'https://archism.ru/uplcv?utm_term=server+freeze+hack+pubg', are likely used to redirect victims to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://archism.ru/uplcv?utm_term=server+freeze+hack+pubg
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/746441dae4b361c0436dbe4f4b58bbe3/8496437756.pdf
- http://intelekt.biz/uploads/pages/files/rezavi.pdf
- http://idominjazz.com/fckeditor/userfiles/image/kaxizalu.pdf
- https://ecoverservice.be/gallery/file/zuloda.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141b8aacd191---37801886788.pdf
- http://filtrydokoparek.pl/img/all/luwuwufagukivaraliluzer.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137655250a1e---gewufopikakelora.pdf
- https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/jinebiramubodupurevubetif.pdf
- http://taiwangallant.com/uploads/files/202109091912081981.pdf
- http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/68388869187.pdf
- http://tobn56.com/UpFiles/file/84903196586.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16135924d496bc---11493788472.pdf
- http://metalltechnik-kutschi.at/79912850201.pdf
- https://blagoustroystvo24.ru/ckfinder/userfiles/files/vibugalirumajixogovikeka.pdf
- http://stoewebdesign.no/userfiles/file/nofawogimab.pdf
- https://crcnueva.naturasoftware.com/uploads/images/files/92927275575.pdf
- https://skiclubraonbaccarat.fr/pdf/26680656999.pdf
- https://bongkartuantakur.com/contents/files/napanalux.pdf
- http://bdsps.org/slbdavbatala/userfiles/file/gexupisuxiruxawad.pdf
- http://energosol.pl/images_cms/file/12910382422.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dc4b391d02---58336772388.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/2039bf04e31e93592f53c22ecdc93fbf/90962468190.pdf
- http://suvagcentr.ru/userfiles/files/sugitulunosabavigapesimu.pdf
- https://vivekanandbawwa.com/userfiles/file/gekitifi.pdf
- http://evohome.pl/userfiles/file/23221672332.pdf
- https://geneolock.com/ckfinder/userfiles/files/66754367926.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_off0000b9f6.bina4e2ed8baf920973ab9974d0e7a13eea6077d93353995b9714a4c67500fe29ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9F6 | 15644 bytes |
font_01_sfnt_off0000e1da.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1DA | 16792 bytes |
font_02_sfnt_off0000f9f1.bin6dfc19661f64500e3dfac92e5d77a0b88f067c57379d45dc2bd64e4605b10c8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9F1 | 10664 bytes |
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