MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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 https://archism.ru/uplcv?utm_term=subtitle+bahubali+2 PDF link annotation
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5212f34196---lirugonu.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a091d34e3fa---3663550374.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/3abd1893e867f0cf4c81c69058237d8c/34157937615.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f31c68052a---93899345438.pdfIn PDF document text
- https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/643927ef90638e184509b4d46591f8a7/pekiweturobifosixolun.pdfIn PDF document text
- https://underworldgear.com/upload/users/files/70371108249.pdfIn PDF document text
- http://popnmusic.fr/userfiles/file/jawajorevigudizuderuxor.pdfIn PDF document text
- https://dianthusindustrial.com/resimler/files/5817395573.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/b3c1bad40867ac159eccadbb7ee74be2/tazamipigudomolajutobed.pdfIn PDF document text
- http://dabaizhongxue.com/upload_fck/file/2021-5-28/20210528054848522331.pdfIn PDF document text
- http://nordicaluminium.ru/userfiles/file/88815235882.pdfIn PDF document text
- https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/137881c28d05bf9ccf612b30a740e18f/54490311066.pdfIn PDF document text
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/16094bc88cc552---26780321579.pdfIn PDF document text
- http://bhhangkhong.com/upload/images/files/jafovawum.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f0df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0DF | 4188 bytes |
SHA-256: 72866d1a1f5f936358cac854943ccf02ccb5ecf0486f097094578198098e61ef |
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font_01_sfnt_off0000ffb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFB2 | 4872 bytes |
SHA-256: e09ff3d8841a3c917b7c42ff7785316e24df7078029a86f2f66d9166da414f4d |
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font_02_sfnt_off00011041.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11041 | 11172 bytes |
SHA-256: 9895e764bb22b7645ac07076ed2f79cd0e82ceab4099d1ddaf6e4c4981f6c5db |
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