MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://parvazyab.net/basefile/api203/files/rewajubefebugufu.pdf In PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/7df7d88b353fd463dcb30dd61fcebe5b/88007882621.pdfIn PDF document text
- http://isystem.hu/userfiles/file/94162147695.pdfIn PDF document text
- http://jysfh.com/upload_fck/file/2021-9-1/20210901082802333719.pdfIn PDF document text
- http://shahnawazonline.com/uploads/files/pixawobelewuniximagomimu.pdfIn PDF document text
- http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1612eead742b09---wovugepudedunapelono.pdfIn PDF document text
- http://directartdeal.com/uploaded_files/userfiles/files/galigamatugolediniw.pdfIn PDF document text
- https://dnm.tw/uploads/files/202109030058462640.pdfIn PDF document text
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc83aecf77---wixalofojogaxas.pdfIn PDF document text
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b515dc1eb0---zagufekamilelirawufov.pdfIn PDF document text
- http://metalltechnik-kutschi.at/85668153417.pdfIn PDF document text
- http://espwireless.net/uploads/file/pubowiwibenadufenuten.pdfIn PDF document text
- https://helices-evra.com/userfiles/file/67400171794.pdfIn PDF document text
- http://archiw.gbpopatowiec.pl/img/upload/files/79969893820.pdfIn PDF document text
- http://dachastyle.com/userfiles/file/24454066890.pdfIn PDF document text
- https://lbk-ingatlan.hu/uploads/file/jijudu.pdfIn PDF document text
- https://egyptsuntours.com/userfiles/files/durisavabasobu.pdfIn PDF document text
- http://obasekiestates.com/UserFiles/file/2086126970.pdfIn PDF document text
- http://karimeh.com/public/userfiles/file/29425907193.pdfIn PDF document text
- https://0922.sproname.com/files/userfiles/files/32554037632.pdfIn PDF document text
- http://studiotecnicopetrillo.eu/userfiles/files/limifikaweziker.pdfIn PDF document text
- http://thesecurityguardunion.ca/userfiles/files/78126456441.pdfIn PDF document text
- http://teleinwestor.com/userfiles/file/26656692817.pdfIn PDF document text
- http://gloria-eurex.com/images/blog/file/90963758545.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=web+service+android+studio+examplePDF 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_off0000d93e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD93E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f150.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF150 | 21844 bytes |
SHA-256: bc4f17ea0948c624659e6980e6626f96f5e627e6473571888e1c56be3f58af91 |
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font_02_sfnt_off00012ac8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AC8 | 11076 bytes |
SHA-256: 2c626124485aff2af096ad33df2d43769fea1f2436f6113b86d6619b7d0eeaef |
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