MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 7
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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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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://medvor.ru/uplcv?utm_term=english+for+computer+science+book+pdf PDF link annotation
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075be601a11a---rivewigo.pdfIn PDF document text
- https://asthasupermarket.com/userfiles/file/fereboropev.pdfIn PDF document text
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/23e419b8e034a1db7f4867243a23d71d/61981933949.pdfIn PDF document text
- http://komputerzagrosze.pl/userfiles/file/66847280265.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5d288037b---dikitugudavodubinok.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7242f84919---sazakidususo.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607580c297bcd---junifoxosigapinawogirep.pdfIn PDF document text
- http://merrygoldholidays.com/ckfinder/userfiles/files/48226397161.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ec263c2bf---37079937161.pdfIn PDF document text
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16095ab90c001d---tudatawewekotit.pdfIn PDF document text
- https://alakharia.com/public_html/userfiles/file/tovudixo.pdfIn PDF document text
- http://cuatudongbinhduong.net/uploads/files/16852602552.pdfIn PDF document text
- http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/xusulasun.pdfIn PDF document text
- http://beta-rc.com/upload/files/kekoseledijapawew.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609846acceb2c---purugokenovadilejojorig.pdfIn PDF document text
- https://ka-base.no/images_content/file/88705778055.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f44411058c---kosozemuguvak.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.indictrans.orgIn 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://scripts.sil.org/OFLIn PDF document text
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012030.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12030 | 5520 bytes |
SHA-256: 1e72056b9e957d978642ce35e06d5f7de43e251f40c0dce0b64db6c9585d22bc |
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font_01_sfnt_off000132c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132C7 | 5784 bytes |
SHA-256: c1310de1c55d755e2eda4705abb34b3dd0817f921316271afc1c6e3f836e4fca |
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font_02_sfnt_off000145df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145DF | 1800 bytes |
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
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font_03_sfnt_off00014e6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E6B | 10572 bytes |
SHA-256: cf2d21358402617535890efa63c3883ca7b12e437fb03fd0f146d9bcedcf568b |
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font_04_sfnt_off000170f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x170F8 | 11496 bytes |
SHA-256: a1d50ee4049931d8b2b53941d8b431f76f820c0e4fb9cd98dd2bef5667f0fdc2 |
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