MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by multiple heuristics and a machine learning classifier, including critical alerts for linking to known malicious redirectors and being part of a link farm. The embedded URLs, such as 'https://dafemum.ru/award?keyword=america+west+side+story+score+pdf', are designed to redirect users to potentially harmful sites. The document body, though heavily obfuscated, contains keywords suggesting a lure related to 'America west side story score pdf'.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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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://dafemum.ru/award?keyword=america+west+side+story+score+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4383565/normal_6020d521cabc9.pdfIn PDF document text
- https://s3.amazonaws.com/wekibik/let_it_go_piano_sheet.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370294/normal_601cb609bf0e9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393016/normal_5fe5e2790f163.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4487903/normal_5ff9b3088ca67.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459029/normal_602158990ee3c.pdfIn PDF document text
- https://s3.amazonaws.com/kisagoz/64408753032.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495974/normal_601d2f3286309.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://4868a29a-6d77-448d-a9c5-bc5c6a1713c3.filesusr.com/ugd/060e50_06336950b5c04581811ae12a59b9f7d6.pdf?index=trueIn PDF document text
- https://5fa60de5-32ab-41ac-ba65-77330e21e623.filesusr.com/ugd/2e16aa_ca66df618b5f4ee5826e111ca21a3bc2.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/1245b8b5-7a7d-43e1-85e4-fd065aa2cba9/84010946625.pdfIn PDF document text
- https://da5bec28-7969-4117-8ffb-5069fce5e80c.filesusr.com/ugd/31593d_f989a3f61fea419db0e9b4b7df6aa0ca.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/85cd3db6-af5b-44e6-ac1d-5ad9aa88f3b7/54450086124.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c14ad11f-bffa-438c-8191-28a0699f521c/36346715197.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/04aa8002-aeb1-4708-8e49-f3956edeb497/ariens_st724_snowblower_parts_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4ff5f4e2-35e0-4c71-ae68-76053871066e/army_pt_2_mile_run_standards.pdfIn PDF document text
- https://5a1138df-423b-4a5d-a7c7-36223740754e.filesusr.com/ugd/a72fa8_78ace68894b04c0b9598c08cfd917c08.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/19b25f13-6716-4f45-ad75-22fb37a8450b/suxon.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_off00011b68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B68 | 5452 bytes |
SHA-256: 796416a0d108028b8a2210f0e3a53d758fccb939519c2e4947cd8e72437e788d |
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font_01_sfnt_off00012df0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DF0 | 10672 bytes |
SHA-256: 08fecd91b79503d4913b3b37e4c8b482b06f68880e837c14379e133bcd0ea084 |
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