MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support this assessment. The document body, though obfuscated, contains text related to 'resident evil 4 partner mod', likely a lure to disguise the malicious intent of redirecting users to the identified malicious URL.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://cctraff.ru/strik?utm_term=resident+evil+4+partner+mod In PDF document text
- https://cdn-cms.f-static.net/uploads/4366344/normal_5fda0001a73b3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369654/normal_5f8c50c83bd9f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4391326/normal_5fdfaf2c6bbea.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4495413/normal_5fca82e9c4392.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418579/normal_5f9b8e2cdc4c5.pdfIn PDF document text
- https://xedowekogo.weebly.com/uploads/1/3/4/6/134609622/aead23.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369632/normal_5fc099f046159.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369657/normal_5f883e2a0dbf8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372382/normal_5f93f082eb017.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485153/normal_5fdfaff98e4af.pdfIn PDF document text
- https://cdn.sqhk.co/salenasova/hjviBjf/harvard_business_review_student_coursepack.pdfIn PDF document text
- https://tisemadu.weebly.com/uploads/1/3/4/3/134387657/6168a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365576/normal_5f9f1c5fad3d6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369786/normal_5f89c215682bb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375521/normal_5fbee050668c8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403534/normal_5fcd309b9ee0c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.opentle.orgIn 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
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00018b8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18B8F | 7120 bytes |
SHA-256: c274721c894364acd93ad90bf1a442b4404934ee3c0a6632be079552326a1b94 |
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font_01_sfnt_off0001a3c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A3C4 | 5260 bytes |
SHA-256: 6c5bc27ca21957214317d256a035229710094baa4e9df87b4a518b541917d042 |
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font_02_sfnt_off0001b59b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B59B | 1572 bytes |
SHA-256: 5ddaf17c2cfe149844edab496ab08b90c27f689978ce6574552c83740fe9237a |
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font_03_sfnt_off0001be06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BE06 | 5768 bytes |
SHA-256: b469ae6e6241ed075726e10df976668659bd81f32f218b7aa3ca6d3007930df4 |
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font_04_sfnt_off0001cc81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CC81 | 12848 bytes |
SHA-256: 06675b3f5f25869ab9051c616bdc0fc25f574b5524d85d6fe128d46fe667617b |
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