MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains numerous links to external websites, with one heuristic specifically identifying a PDF link to an algorithmically-generated URL. The presence of multiple PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics suggests a link farm or phishing attempt designed to redirect users to potentially malicious content. No scripts were extracted, but the overall structure and heuristics point towards a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 6
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://conexkarvan.com/cache/fck_files/file/22158040601.pdf In PDF document text
- http://faisaltowel.com/survey/userfiles/files/batopisuti.pdfIn PDF document text
- https://ctcitsupport.com/media/files/92638301371.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/16740410761.pdfIn PDF document text
- https://dichvumayphoto.vn/webroot/img/files/jemifesawuwimewaposom.pdfIn PDF document text
- http://deaprogettazioni.it/userfiles/files/86964488226.pdfIn PDF document text
- https://eastoncn.housemember.com/uploads/files/legavagujuselone.pdfIn PDF document text
- http://whuntex.ru/userfiles/file/fukolesugegotetokixo.pdfIn PDF document text
- https://bbpartner.cz/userfiles/file/94109284687.pdfIn PDF document text
- http://architettobotteonpierpaolostudioabacus.it/userfiles/files/kukikagonedema.pdfIn PDF document text
- http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143bf36426e7---78228551834.pdfIn PDF document text
- https://war-old.its.vn/new/userfiles/file/xoxusevi.pdfIn PDF document text
- https://imagebrandstudio.com/userfiles/file/6664637362.pdfIn PDF document text
- http://cjatkinson.com/userimages/nujetitesaxirariripafefip.pdfIn PDF document text
- http://khiensa.com/UserFiles/File/63896047405.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/092891af1e19e963da4c279f0be3e2f9/fevulosejebunonegina.pdfIn PDF document text
- https://sainaudit.mn/File/26044248932.pdfIn PDF document text
- http://www.galiantsolutions.com/emailimages/file/pepijupexurate.pdfIn PDF document text
- http://ambulatorioveterinariovianello.eu/userfiles/files/tubuwug.pdfIn PDF document text
- http://jimsclub.net/new/board/img_tinfo/file/20210901104514.pdfIn PDF document text
- http://gibisch.com/files/files/rikipofedikazaladezim.pdfIn PDF document text
- http://mecateengenharia.com.br/ckfinder/userfiles/files/40674188340.pdfIn PDF document text
- http://www.zywawiara.pl/pliki/xotijeporexoradesim.pdfIn PDF document text
- http://noithatsah.com/webroot/img/files/wuriguzaveluzekufiloxeza.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=autocad+manual+pdf+free+downloadPDF link annotation
- 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_off00011368.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11368 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012b7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B7F | 10688 bytes |
SHA-256: 56f62c0ac8743db5178a1e875f159f929a78d6182a9807a8387a97881a4e4833 |
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font_02_sfnt_off0001440e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1440E | 17536 bytes |
SHA-256: 908d9631a6fdd12f6a61ff35d50ad91f4c7e0d27dede539124ef1f8a42b39cb0 |
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