MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised CMS upload directories and disposable hosting, indicating a link farm designed to redirect users to potentially malicious sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically flags this behavior. While no scripts were directly extracted, the nature of the embedded links suggests an attempt to facilitate phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160989f782afaf---98744632326.pdf In PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099b1a7a46f4---36041239175.pdfIn PDF document text
- https://orderpoet.com/ckfinder/userfiles/files/89098228205.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d64e50c142---1074858599.pdfIn PDF document text
- http://microlana.com/ckfinder/userfiles/files/vigigilol.pdfIn PDF document text
- http://www.chubsorn.com/file/files/nogawevepenamovaz.pdfIn PDF document text
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/1c89b171d0741429f3a08edb43dbd05a/dubegisugowovo.pdfIn PDF document text
- http://suaups.net/userfiles/file/xitamegapisum.pdfIn PDF document text
- http://ballstonfamilymedicine.com/clients/861402/File/wanalanomulam.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d23dc073334---19505907817.pdfIn PDF document text
- https://intervalhousehamilton.org/ckfinder/userfiles/files/romavepisiradigipol.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5ndlp7j1uq3a3jmpk9int62vf7/30503610139.pdfIn PDF document text
- http://myarrahnu.com/mo_images/files/gomasepoxifumo.pdfIn PDF document text
- http://wuxihemei.com/ckfinder/userfiles/files/20210714_130555.pdfIn PDF document text
- http://hykylalumni.org/userfiles/96846600831.pdfIn PDF document text
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/7oapi35v2oitml0v6718f6nnat/dawipulewisomalu.pdfIn PDF document text
- http://feuerwehr-mittenwalde.de/mediathek/files/diboripinefid.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607039a361716---70292813098.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/jobewusiwozuwuvaromeluwu.pdfIn PDF document text
- http://brickform.cz/obrazky/files/52737481873.pdfIn PDF document text
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3cab80a1cb---44694577134.pdfIn PDF document text
- http://pahsclassof2005.com/clients/d/d6/d61c4c031b0f3af13d3e88110ef3a3e1/File/zijegiwomasu.pdfIn PDF document text
- http://yamamatoen-wanwan.jp/ckfinder/userfiles/files/nofebepi.pdfIn PDF document text
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/7f8f5f44274d3af8cede72f825eca79c/fanefi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=what+trucks+have+the+best+incentivesPDF 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_off0000fb71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB71 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011383.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11383 | 17316 bytes |
SHA-256: c46c716437eff166c5ba8c2cad0bde46a3f4c31e994f8018a78ea0a1b4cf257d |
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font_02_sfnt_off000140b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140B7 | 10552 bytes |
SHA-256: 35085757eafcc28e885400148dc27525618d05974c0f73eb1175eecd0f778199 |
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