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://crysiq.ru/uplcv?utm_term=fs+18+download+apk PDF link annotation
- http://beytarimcilik.com/admin/editor_resim/file/tavetava.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/dikum.pdfIn PDF document text
- http://agrobud.net/uploaded/file/xigawiwap.pdfIn PDF document text
- http://ks4073.com/file_media/file_image/file/77209824062.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3cb5e7b4ce---85225185411.pdfIn PDF document text
- http://93564497.com/userfiles/pibiluberupuwi.pdfIn PDF document text
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609fde4c6a602---fiwaso.pdfIn PDF document text
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/htn5rh8mci32dco3qv6v0ui794/34884322321.pdfIn PDF document text
- https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/ddfcd4c2bfad683266e2889fb6f3112f/pagapetigotizazexariw.pdfIn PDF document text
- http://ruresept.ru/files/file/17892564928.pdfIn PDF document text
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16076aeaea999a---donimed.pdfIn PDF document text
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/e80a8e9dd76c58886ce13045c2980954/lizula.pdfIn PDF document text
- http://alexhoffordphotography.com/temp/files/file/nusukipo.pdfIn PDF document text
- https://istanajpdua.com/contents//files/vibinavipebedi.pdfIn PDF document text
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/pacoe61lts9tesvcmqevr6gclg/76301722632.pdfIn PDF document text
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/56460648779f4e193a489a449f5ec588/52565894405.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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_off0000eb86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB86 | 4756 bytes |
SHA-256: fab1f507ee2470b60f0f43574b3fa06dee15fbb14d209f86be6ca388bfb387cf |
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font_01_sfnt_off0000fbc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBC7 | 10852 bytes |
SHA-256: 92ebf1a4ac27c35bd9e8cb8b4216eb32d52f4a7b0177fef1851cf89982228347 |
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font_02_sfnt_off000120c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120C6 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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