MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple heuristics as a link farm, with many URLs pointing to compromised CMS upload directories. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. The document body is heavily obfuscated, but the presence of numerous external links suggests an attempt to redirect users to potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 https://educationindiajournal.org/ckfinder/userfiles/files/66366881750.pdf In PDF document text
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/17ce9b5960e894d8032da33c963f51ac/64774076245.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608777c083d1e---ribopuwagoparibegedo.pdfIn PDF document text
- http://geombiagioschettino.eu/userfiles/files/46374609652.pdfIn PDF document text
- http://wecans.net/_UploadFile/Images/file/74168258808.pdfIn PDF document text
- http://fecoil.com/userfiles/file/63245051434.pdfIn PDF document text
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d20d067a8---42854856982.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160961ed182638---zivipexafonax.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/cafc663e8136006dbeac7951618a1a31/24965103025.pdfIn PDF document text
- http://yeosingol.com/FileData/ckfinder/files/20210610_66B7E3D59F836CEE.pdfIn PDF document text
- http://cck-brno.cz/ckfinder/userfiles/files/14899979119.pdfIn PDF document text
- https://arnetbilgisayar.com/upload/ckfinder/files/pekatozamivodinexo.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbb71421a1---30029097308.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/s8qfthfhbf04o35e460smobc99/kezefuvudipovivuvuw.pdfIn PDF document text
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/7dbf15beab8262627adc0632fe0bd7b7/fetekivekukitupinu.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a850d906ffd---kemuxugajo.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/67e281e6c4d741afe6944d4359969a48/69753195934.pdfIn PDF document text
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d038b573078---devekomuwerugapajolumuwab.pdfIn PDF document text
- http://luxmeterthai.com/ckfinder/userfiles/files/nuradawupoxipekokasulabu.pdfIn PDF document text
- http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/vawilisubof.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc74fe9329---fezenolaremam.pdfIn PDF document text
- http://ristorantebiscione.com/userfiles/files/sitetiwemuw.pdfIn PDF document text
- https://sukhayurveda.in/userfiles/file/47821843983.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3def615a2f---ruvejejidovapi.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb4cda7f943---guzame.pdfIn PDF document text
- http://speaklifeiamgreatness.com/files/files/54329172015.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=introduction+of+globalisation+in+political+sciencePDF 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_off0000f707.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF707 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010f1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F1E | 10984 bytes |
SHA-256: 9cd979f217188f810d7c7999ad6877eb111f6eae11028598d54c1c6d2d1446e2 |
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font_02_sfnt_off00012850.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12850 | 16700 bytes |
SHA-256: a48287ed3d967dc1d622d2e66a5a00b497b9b7edb281dd9ef5461bd8c2fabc48 |
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