MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm designed to distribute content, and ClamAV detection confirms it as a phishing trojan. The ML classifier also strongly flagged this PDF as malicious, suggesting it's part of a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://infrive.ru/uplcv?utm_term=assassin%27s+creed+identity+free+apk PDF link annotation
- http://ciba.lv/uploaded/file/41232399275.pdfIn PDF document text
- https://xcheck.vn/uploads/userfiles/file/pezafulegodin.pdfIn PDF document text
- http://hyundai-baoloc.com/luutru/files/76778224945.pdfIn PDF document text
- http://hnyinfeng.com/d/files/14674543676.pdfIn PDF document text
- http://preprod.app-nomads.com/ugecam/admin/ckfinder/userfiles/files/jiwojizutepaxugu.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/161305a44632d7---4659707570.pdfIn PDF document text
- http://ansing.nl/userfiles/file/84265499865.pdfIn PDF document text
- http://htwy.com/upload/file/kedababutisazu.pdfIn PDF document text
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614316d76a83c---nuvoxob.pdfIn PDF document text
- https://mamo-tato.ro/userfiles/file/36836487089.pdfIn PDF document text
- http://computerdoki.hu/user/file/89058996971.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/40820331308.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/5ef086d9e4dc8a77927c4a0420e1343e/wefowelawaresaseg.pdfIn PDF document text
- https://argentinaproduct.com/ckfinder/userfiles/files/waxojugoralud.pdfIn PDF document text
- https://etonbio.com/newsLetters/images/file/68138709902.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/7snq7ogkrn4ltfl9eljeh6se03/39068492031.pdfIn PDF document text
- http://anneadamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/59007490952.pdfIn PDF document text
- http://classicalgardenstatues.com/uplds/file/nipigineku.pdfIn PDF document text
- http://seasonmediagroup.com/pic/file/vodomuzowe.pdfIn PDF document text
- https://fceresources.com/ckfinder/userfiles/files/nizolepij.pdfIn PDF document text
- http://minerva-collection.net/files/files/76386613584.pdfIn PDF document text
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/70711864229.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/lebumonajexerariril.pdfIn PDF document text
- http://tokyoto.pl/UserFiles/file/pepifudasumap.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e05c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE05C | 17812 bytes |
SHA-256: c5f77f2ccb516f8463830de642b6e44761cb824db01d4e7443094d9fe01f40e9 |
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font_01_sfnt_off00010eae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EAE | 10668 bytes |
SHA-256: 8031c167a55e27cd0c49b0ebd628c594a55d7f16f8e85cea0311d65b05f7ee43 |
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font_02_sfnt_off0001275a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1275A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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