MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and exhibits multiple high-severity heuristics related to malicious URL linking and potential CMS compromise. The presence of a 'download button' lure and numerous external links, including one pointing to a PDF hosted on a compromised WordPress upload directory, strongly suggests a phishing or malware distribution attempt. The ML classifier also indicated a high probability of maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9761
Heuristics 8
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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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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://krisoc.ru/uplcv?utm_term=burnaware+professional+license+key+free PDF link annotation
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f449eadbe---sujogifadutazilipulug.pdfIn PDF document text
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/8fcccf16e37eb85da445bd6d6b024519/90938198213.pdfIn PDF document text
- http://allasclub.com/campannas/file/30013090597.pdfIn PDF document text
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088057462cf0---bikujawifod.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7600b3032---jukanenibanekow.pdfIn PDF document text
- http://adbrf.com/files/fckeditor/file/53664596760ff4d53dadca.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf625b1665---90746140183.pdfIn PDF document text
- http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/jadexevemedoxusumapagi.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/c0c133ae6d602a9b677047155d7abdfe/dobosisotisavo.pdfIn PDF document text
- http://www.evisiontiendaonline.com/ckfinder/userfiles/files/31018963855.pdfIn PDF document text
- http://joyear.com/ckfinder/userfiles/files/41699982982.pdfIn PDF document text
- http://talentfuturesservices.com/sharpinstitute/images/files/mofegewexegowarujidit.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/9b7jh9mqeg0lhrfb4ittb9gcu7/rufijagalululiwopa.pdfIn PDF document text
- http://kutscher-customs.de/gfx/userfiles/files/nosoroz.pdfIn PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b79f7714008---49865271267.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877d1b15401---morekumovu.pdfIn PDF document text
- http://gloucesterclassof81.com/clients/23558/File/zewewevubapebisanufakulo.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16095c9e57ed2f---52796500268.pdfIn PDF document text
- https://2-view.org/home/view/public_html/ckfinder/userfiles/files/12877984446.pdfIn PDF document text
- http://gibisch.com/files/files/67699177324.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3d8a82fc9---domufulep.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160a995230ef28---balakoruxud.pdfIn PDF document text
- https://samarpanbharat.org/trila/userfiles/file/78976224128.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d735dbac953---durebutita.pdfIn PDF document text
- http://chobacgiang.net/webroot/img/files/gupiborujasoxijasobavisu.pdfIn PDF document text
- https://balarampurblock.in/ckfinder/userfiles/files/14595174491.pdfIn PDF document text
- http://pro.ovh.net/~tribuene/images/banque/file/namebirunabuduz.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f66d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF66D | 16164 bytes |
SHA-256: fd494554c7a7a2c4488382a78096c535ff133766c7221992be4f6a58596b2467 |
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font_01_sfnt_off00010be3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BE3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000123f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123F5 | 18948 bytes |
SHA-256: 35daf6949fa4f7f4b74f9803b847d5f48399fa0d47f6cd622278bb4ecb40914f |
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font_03_sfnt_off0001550e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1550E | 10820 bytes |
SHA-256: 867441c51989fb32c5678dd0608dc6b122f6b72d232a9bc8947d81b0b1b19f72 |
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