MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1204.001 Malicious Link
The PDF contains embedded links that redirect to a malicious domain, identified as a credential phishing lure impersonating the brand Norton. The ML classifier strongly indicated maliciousness, and the presence of multiple links to disposable hosting further supports a malicious intent. The document body, though heavily obfuscated, contains text related to 'musician's guide to aural skills answers', likely a pretext for the phishing attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
-
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.
-
Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://dafemum.ru/wix?keyword=musician%2527s+guide+to+aural+skills+answers.
-
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.
-
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.
-
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/wix?keyword=musician%2527s+guide+to+aural+skills+answers In PDF document text
- https://cdn.sqhk.co/modonasuje/h2ygfPl/77299695892.pdfIn PDF document text
- https://cdn.sqhk.co/bufudoraxala/Qhfuja4/mopilewobipufizakop.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4466661/normal_602a5868a598b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446762/normal_5ffe7e9fab4cc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388157/normal_602f7da6d2d0d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450730/normal_5fcfae61b0656.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416302/normal_606e44ad7720e.pdfIn PDF document text
- http://bafedudovodamo.medianewsonline.com/biology_notes_for_neet.pdfIn PDF document text
- http://vegunax.getenjoyment.net/today_thina_thanthi_news_paper_tamil_download.pdfIn PDF document text
- https://cdn.sqhk.co/misumirotoj/jgcLEen/samsung_laptop_warranty_check_by_serial_number.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447086/normal_602b3aecaa5a7.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467564/normal_5ff369bb070fb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://wotidupodugi.myartsonline.com/pujekorosijozekojesuvapud.pdfIn PDF document text
- http://jujeludapivibiw.rf.gd/68310293570.pdfIn PDF document text
- http://mirajiletumumi.epizy.com/singer_sewing_machine_repair_union_nj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c909f41c-ff2a-4c73-a592-85c79d51f40f/93709344794.pdfIn PDF document text
- http://tofilijewok.atwebpages.com/44336854778.pdfIn PDF document text
- http://wififeju.atwebpages.com/sikozuxifekakaxol.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/093e47bc-3806-4be2-bb72-eaeccfa0a14b/19683456477.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_off0001060d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1060D | 5304 bytes |
SHA-256: a4acb7f025d7655dd79333b6e0bb028f4a906a14b1af29bb7345400d000c3d77 |
|||
font_01_sfnt_off00011849.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11849 | 10552 bytes |
SHA-256: 7833647bdecc086a03b99d693444e8cf6c134f70b3be60e6956e1827ca84d3b6 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.