MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document that functions as a link farm, directing users to multiple external websites. Several heuristics indicate that these links are hosted on compromised CMS uploads, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9448
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 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 https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/335beaa5be011666f3feccd141b8cbdf/84914416717.pdf In PDF document text
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160bf8b2bc11cd---sakexitewupi.pdfIn PDF document text
- http://windmill-bv.com/userfiles/files/vusokopolujiv.pdfIn PDF document text
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa043c7461---wekirugipiduturosi.pdfIn PDF document text
- https://artasedanasingaraja.com/uploadfck/file/rigamupar.pdfIn PDF document text
- https://actor-conseil.com/files/file/58709502358.pdfIn PDF document text
- http://industra.sk/userfiles/file/52260847586.pdfIn PDF document text
- http://www.tokyomagic.jp/images/library/File/xosetiworiv.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160f9cb9413c78---xafimedesojibu.pdfIn PDF document text
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1612849829ed3e---kovobojimukorojiketeman.pdfIn PDF document text
- http://abwingsva.com/uploads/files/27654377943.pdfIn PDF document text
- http://philboyd.com/fadevigapagigasilet.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/6485986449.pdfIn PDF document text
- http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/ad91ebf31172770fac8da5429bef2e5c/10258946837.pdfIn PDF document text
- http://cozycornerexpress.com/uploads/files/90301076350.pdfIn PDF document text
- https://leganordavigliana.it/uploads/file/2050694270.pdfIn PDF document text
- http://hornets88.com/clients/56662/File/38348202133.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0d493e0bd---sisomimefawu.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/5e0e8fe1e5eed84824f6b9c3577f5438/xobetimakadikobebewa.pdfIn PDF document text
- http://www.siposferenc.hu/html/43159855970.pdfIn PDF document text
- http://szpital-sulecin.pl/images/fckfiles/file/70012820781.pdfIn PDF document text
- http://burelomdo.com/ckfinder/userfiles/files/8840595284.pdfIn PDF document text
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/3580fc1382e0b973453b01d77771cd15/25046531450.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=diferencias+entre+socialismo+y+capitalismo+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_off0000e258.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE258 | 20316 bytes |
SHA-256: 03b78ffa7e2ee600f81534b4f41a051eb62acd30611e08a4df01143e81756061 |
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font_01_sfnt_off0001154e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1154E | 10896 bytes |
SHA-256: 532555906f210fa11a589579d9a5cb5c53ac83a823219e73679d3786d12b83b9 |
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font_02_sfnt_off00012e8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E8B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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