MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, suggesting it functions as a link farm or phishing lure, possibly disguised as an appeal letter for a nursing program. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic strongly suggest the document's purpose is to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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://kuzutuzo.ru/wix?keyword=sample+appeal+letter+for+nursing+program PDF link annotation
- https://static.s123-cdn-static.com/uploads/4418166/normal_5fc679abb9344.pdfIn PDF document text
- https://zesalefol.weebly.com/uploads/1/3/5/9/135994098/lumob.pdfIn PDF document text
- https://tenadugal.weebly.com/uploads/1/3/2/7/132740541/buwupuwamazi-jiwiwi-punageremuf-pefurat.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378607/normal_6009b4a803f34.pdfIn PDF document text
- http://jasazotinalol.mygamesonline.org/corsair_gaming_k95_rgb_platinum_cherry_mx_brown_review.pdfIn PDF document text
- https://dilozerekake.weebly.com/uploads/1/3/1/4/131452754/jipisago.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490273/normal_603fa4bb34645.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://2f60c0de-bae8-48d8-8f3f-ce7907f87c52.filesusr.com/ugd/badafb_47a1cc427e0e4164836c9358b4b1b5d3.pdf?index=trueIn PDF document text
- https://4b4ea461-5266-411b-8735-d5290551f550.filesusr.com/ugd/7fedcf_f44b94da7b474b2faecec50deca275c1.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/petubapizo/32258554962.pdfIn PDF document text
- https://c1bbde11-5cda-4f7c-8b74-b2fe90b484f5.filesusr.com/ugd/1c8c6c_f717c3e664cc4c428b23f9b4f57cd560.pdf?index=trueIn PDF document text
- https://29aa9d28-cc9d-45fc-8d86-3718b5881c84.filesusr.com/ugd/74c34a_837467d5891d459da2255a3b6ab2f8f5.pdf?index=trueIn PDF document text
- https://96ea5dd8-6962-4d57-b29c-fb233a715e3b.filesusr.com/ugd/ac3463_e1349ca3170c4624957fcdecc8f556d6.pdf?index=trueIn PDF document text
- https://07e0a16e-b77d-475b-b724-88bbaedb347c.filesusr.com/ugd/8e9e2f_0a11049f57a9482c94930ba187e9a0f5.pdf?index=trueIn PDF document text
- https://f39f7cea-6337-46de-af4f-699959e6db0a.filesusr.com/ugd/004672_2b2d1c7465d24fd095d1d74a50abd91e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kegubinefuda/warhammer_2_total_war_lizardmen_guide.pdfIn PDF document text
- https://fccd5518-64e1-462d-9dbe-8d8d8a19ca7a.filesusr.com/ugd/eb005d_d2c5a143a02e49d0a15e3c3a34978135.pdf?index=trueIn PDF document text
- http://wudemexa.myartsonline.com/angels_in_america_screenplay.pdfIn PDF document text
- https://s3.amazonaws.com/kavifunaruvi/carrageenan_induced_paw_edema_method.pdfIn 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_off0000f734.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF734 | 5324 bytes |
SHA-256: 59ae8c1ac6876d2ac3ea7aa0d0778f8815262f16960aade565f2c6ef248bc8b9 |
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font_01_sfnt_off0001093b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1093B | 11084 bytes |
SHA-256: 5c2ce0b0233e6fa54fcd4faacf9e55044f0b8713126469efd3f30a79e80fb8c7 |
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