MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories, presents a deceptive download button and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://szyldkj.com/luodan/images/userfiles/file/72802950318.pdf In PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/au2a24u8ot869hb7nv3tof3q84/54442360067.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/71806863143.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aecb1506af5---31256734460.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e53c923e666---nekulipulemelalewi.pdfIn PDF document text
- http://zonazero.es/userfiles/file/54766025172.pdfIn PDF document text
- http://mackyz7automotive.com/js/upload/files/32911873399.pdfIn PDF document text
- https://gobelsprofil.com/upload/files/jozabexakekawefuja.pdfIn PDF document text
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c4eea804f5---gezuroxigifo.pdfIn PDF document text
- http://airconbank.com/upload/fckeditor/file/21966036122.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/is95bdnd648aptmshu8lfbp6b3/lanonumane.pdfIn PDF document text
- http://dijladentalcenter-qa.com/userfiles/file/82110054543.pdfIn PDF document text
- http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/barese.pdfIn PDF document text
- https://mindspacepsytherapy.com/upload/ckfinder_temp/files/20210613063007.pdfIn PDF document text
- http://htk2.altrodesign.eu/ckfinder/userfiles/files/dakisozelivobuxerej.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/f972caf5a54de127e0ebb8138155fac7/3806583727.pdfIn PDF document text
- http://come2menorca.com/images/file/pidudupekatofofesena.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/c85b054e377403b01fdd190b9cbac666/59242501046.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d77e92712---xunufilijijifaveduxubapen.pdfIn PDF document text
- https://planet-for-events.de/userfiles/file/57051745130.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bafae59b335---botivevefeje.pdfIn PDF document text
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/q3cl1bo73pfb5nr46ldqjo9on1/5616009759.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d483bde9a15---pojotikelawan.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/807ff4b12c8d3e7732503f9e280ccb04/74259688466.pdfIn PDF document text
- http://2016montemayorreunion.com/clients/e/e5/e530e98a7ee505477716bae2fe71cdef/File/89971294817.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=is+it+safe+to+take+fexofenadine+everydayPDF 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_off0000fd07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD07 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001151e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1151E | 10624 bytes |
SHA-256: 01492a77f5927fb1f81abc3d6dd2405e7393f557e8fd3c40d91f684e6f09d72d |
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font_02_sfnt_off00012da2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DA2 | 17460 bytes |
SHA-256: b9c51464eb6f618b829494b367adffde55b5e4032910da0380b8e58d3c55744a |
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