MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories, indicating a link farm designed to distribute malicious files. ClamAV detected this as a phishing trojan, and ML classifiers also flagged it as malicious. The sample's structure and URL patterns suggest it is part of a phishing campaign aiming to lure users to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.5596
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 http://designerhouse.ru/upload/files/garirikapozakisi.pdf In PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c11890d4f7---punotixifisofogemilo.pdfIn PDF document text
- http://theclelandgroup.com/img/upload/file/vudojasozalalonajedumi.pdfIn PDF document text
- https://projetounificado.com/uploads/files/61955749991.pdfIn PDF document text
- http://crisismobile.com/ckfinder/userfiles/files/meponixonege.pdfIn PDF document text
- http://drtamerturan.com/file/4807049187.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/de622337e5f683e7315b7b2f77495e1a/soxarurawalu.pdfIn PDF document text
- https://bselink.com/userfiles/file/jemifenujop.pdfIn PDF document text
- https://ancoraeducacion.com/images/nirika.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6558e20fea---rerax.pdfIn PDF document text
- https://thefertilizergranulators.com/d/files/bavusesen.pdfIn PDF document text
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1f933430c---55199966282.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc3ec1bd6c---suvud.pdfIn PDF document text
- http://nicolalazzarotto.com/userfiles/files/61241514674.pdfIn PDF document text
- https://gtnet-engine.com/ckfinder/userfiles/files/41702858528.pdfIn PDF document text
- http://originalcheck.it/public/img_admin/file///watuxelukagisuxi.pdfIn PDF document text
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/06690b45f3e315a41f9e7f014d13aaba/senizitekigujigerozafuso.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca67bd1d28---pazeguve.pdfIn PDF document text
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/mpq4rn16an466l00n4ul1ao90a/bumulolonazelimudofi.pdfIn PDF document text
- http://mackielaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99590756123.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b22d30938---6283777411.pdfIn PDF document text
- https://tomorrowhubs.com/upload/users/files/2815122556.pdfIn PDF document text
- http://mirai-kankyo.com/userfiles/files/35856573716.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=abakan+2288+pdfPDF link annotation
- 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_off0000ca8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA8E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e2a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2A0 | 16956 bytes |
SHA-256: 962d3a69dfb32b6136f9d9812f12c98d1137e5ea8b70fd5a1b6df91d56bcd4d9 |
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font_02_sfnt_off00010ef9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EF9 | 10276 bytes |
SHA-256: 2038702c975a75c0a1a890aa3fbe7379a727263416b1fdd85cd880f853e3cc24 |
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