MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting an attempt to obscure the final malicious destination. The presence of a 'download button' heuristic further supports a phishing or malware delivery lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=lipishree+font+for+android PDF link annotation
- https://ip-kamera-rendszer.nuttydog.hu/ckfinder/userfiles/files/sawivinokowup.pdfIn PDF document text
- https://angelsforwarriors.org/userfiles/files/1434098863.pdfIn PDF document text
- https://piauiaqui.com/ckfinder/files/robezerazujakupagaja.pdfIn PDF document text
- http://pphu-joanna.pl/fckpliki/file/fejavaboboxewafakojunuti.pdfIn PDF document text
- http://baggiez.net/userfiles/file/75700191300.pdfIn PDF document text
- https://ever-progress.dacola.com/upload/files/11881256823.pdfIn PDF document text
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed95866e18---kejifewimurijexutuxu.pdfIn PDF document text
- http://abwrichmond.com/uploads/files/94070938488.pdfIn PDF document text
- http://altus.pl/userfiles/file/58556092624.pdfIn PDF document text
- http://prospekt-rostov.ru/ckfinder/userfiles/files/guvunazutobani.pdfIn PDF document text
- http://bjxbw.cn/userfiles/file/wawogojumumogapirixi.pdfIn PDF document text
- https://hoangvan.vn/wp-content/uploads/files/78433631148.pdfIn PDF document text
- https://alwillislifecenter.org/ckfinder/userfiles/files/megodu.pdfIn PDF document text
- http://eventclub.pl/userfiles/file/nabowuzozukizoviz.pdfIn PDF document text
- https://albertoangel.sinecsas.com/ckfinder/userfiles/files/depizafosakapin.pdfIn PDF document text
- http://schokobrunnen.com/idata/kodimemotup.pdfIn PDF document text
- https://nhahangphongcanh.com/uploads/files/lamunerunomomonekaviwus.pdfIn PDF document text
- https://get-insurance.in/ckfinder/userfiles/files/39319391067.pdfIn PDF document text
- https://pokereshop.cz/data/file/24797210543.pdfIn PDF document text
- https://happycondo.leaddeehub.com/userfiles/files/34466114498.pdfIn PDF document text
- http://everestlodgelukla.com/userfiles/file/xejozubalobuf.pdfIn PDF document text
- http://drigungkagyurinchenpalbarling.org/upload/userfiles/files/88858799705.pdfIn PDF document text
- http://anticacarsulaeborzoi.eu/userfiles/files/tusezobolubodiboxesaga.pdfIn PDF document text
- http://outspokenholland.com/userfiles/fckFile/20210903062619.pdfIn PDF document text
- http://0851gay.org/userfiles/202109file/2021091404215770554.pdfIn PDF document text
- http://ssanadia.in/userfiles/file/86481511642.pdfIn PDF document text
- https://lodoshosting.com/calisma2/files/uploads/tidonovimegesobadagasenug.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_off0000db14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB14 | 17304 bytes |
SHA-256: ed6fe37ee3455d31610ffe3272f9460aa6e4056a8fd3eb87d977c5c4071cf1f8 |
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font_01_sfnt_off00010793.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10793 | 10504 bytes |
SHA-256: f16bd25874e1e7f182d93a4472829c9cc295a653521b79a2f0f3ee4c9d2d0d73 |
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font_02_sfnt_off00011f6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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