MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links, many pointing to compromised CMS upload directories and disposable hosting, indicating a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://csc0512.com/userfiles/file/20210908155614_a0bl8m.pdf In PDF document text
- http://soft-pro.hr/upload/datoteke/90195267864.pdfIn PDF document text
- https://atavio.ru/files/file/12715677284.pdfIn PDF document text
- http://e-park.es/img/uploads/files/44106016070.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/161384c3054159---bogenupejuvereti.pdfIn PDF document text
- http://cuanhuaabshanquoc.vn/files/55080879125.pdfIn PDF document text
- https://ra7a7p-h3ba7.com/contents/files/79740637417.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161373e2a103bb---vozabusa.pdfIn PDF document text
- http://geometrarontani.it/userfiles/files/metuka.pdfIn PDF document text
- https://quatcongnghieput.com/uploads/files/52924113505.pdfIn PDF document text
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/6eb4a8d1c2acc960b3d9c14bf3a85cf3/4204014686.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1612f891a45df3---7147746887.pdfIn PDF document text
- http://www.petersonassoc.com/emailimages/file/xideleduj.pdfIn PDF document text
- https://mobspace.xyz/web/img/podborky/files/20610042103.pdfIn PDF document text
- http://phantasos.org/userfiles/file/33086622072.pdfIn PDF document text
- http://fluorescent-training.com/file/63827007468.pdfIn PDF document text
- http://oldmotorsclub.com/files/file/27450647243.pdfIn PDF document text
- http://ngocminhcnc.com/demo_thietbimay_24_7/upload/files/69379168097.pdfIn PDF document text
- http://flapboxes.custompackageboxes.com/userfiles/files/34024619616.pdfIn PDF document text
- http://rebeccafantarchitetto.it/userfiles/files/lonolafemu.pdfIn PDF document text
- http://esoftland.com/userfiles/file/91683243073.pdfIn PDF document text
- http://szerecsengyogyszertar.hu/editor_up/42839165500.pdfIn PDF document text
- https://matricula.netlandschool.cl/files/68434339989.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=trillion+x+trillionPDF 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_off0000da16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA16 | 19012 bytes |
SHA-256: a68682efe4b037f1c499d9b775cd5864ed6b8387a0be67173f8a717db7f97ace |
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font_01_sfnt_off00010c27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C27 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001243d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1243D | 9704 bytes |
SHA-256: 25bcf642eb1062de5f9ca1d3f78be765e0b9652ff6ca0e0da16e440ad92464d4 |
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