MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, indicating it functions as a link farm. The presence of a URL like 'https://nipisod.ru/strik?utm_term=illinois+form+reg-1+instructions' suggests a lure to a phishing or malware distribution site. ClamAV detection and ML classification further support its malicious nature, likely serving as a dropper or redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://nipisod.ru/strik?utm_term=illinois+form+reg-1+instructions PDF link annotation
- http://pe50off.pro/64031998594b8713.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4381546/normal_5fc70b4ec0778.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377663/normal_604120dfb5928.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447263/normal_5ff96f4ded536.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380528/normal_6038fa9c0f791.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453560/normal_6028b18928f0c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4487918/normal_5fed408d4b418.pdfIn PDF document text
- http://hookup154.site/4944349732203yao.pdfIn PDF document text
- http://natfreshik.fun/561280448476mxdn.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462065/normal_603e3d6e4074c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471692/normal_60380bc53178c.pdfIn PDF document text
- http://genoray.pro/galojaguboxe0v1.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://bc732cde-fb09-4fee-8ab5-c82a45a1131b.filesusr.com/ugd/2ac701_ddbeccbca91d452089e4ea6b0d4175a6.pdf?index=trueIn PDF document text
- https://e6b56e3c-1b88-4cfb-972d-ab1702b0a06e.filesusr.com/ugd/8c0e65_83108f1f86914cbf8b256b4378efd5d6.pdf?index=trueIn PDF document text
- https://abbf68a8-5b21-4996-91be-11266bd273ed.filesusr.com/ugd/9374a7_10ae43755bc347c79dfeb6981785f119.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wuzalugiseto/as_valkrias_livro.pdfIn PDF document text
- https://7a3463bf-3117-47cc-940f-ad9d50d05675.filesusr.com/ugd/9f2514_4826eec020a94088b768b84c87ff7698.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/mudurixo/fepananex.pdfIn PDF document text
- https://s3.amazonaws.com/bogeguva/75035511903.pdfIn PDF document text
- https://305aa2e3-e1d2-413d-aa2e-f1bb83d03ded.filesusr.com/ugd/92ee2b_28cca57f5ea845c5bd03b9ce8f11c1b8.pdf?index=trueIn PDF document text
- https://a49aa754-465e-4bbd-924e-b3d0e7b66bd4.filesusr.com/ugd/81d6a4_e577bac061ac426d961c315711222110.pdf?index=trueIn PDF document text
- https://9fbeb193-358d-48fe-b9d9-45f8b63f6b3c.filesusr.com/ugd/ab67b9_25c8db815d3a486295829da660468aff.pdf?index=trueIn PDF document text
- https://f7cac2f2-528f-490f-9bef-cb2448a877de.filesusr.com/ugd/529ba0_85ef8f407b2b44e7b84732e35efe90d6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vexosafugunu/fun_guide_toronto_swimming.pdfIn PDF document text
- https://6c639bf1-704a-4500-b661-329758898742.filesusr.com/ugd/02d620_0097c62c57594091b829762ace80c458.pdf?index=trueIn 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eb5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB5F | 5012 bytes |
SHA-256: ee971d99999da8b5a4b4ed534498eb07e258eb8c5bce491f39aec521fa87cc62 |
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font_01_sfnt_off0000fc6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC6C | 10796 bytes |
SHA-256: 3b664cb777ffa958a6f2c2aeceff28bdf6c9a01487b39bf62db883a0343011f7 |
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