MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links to external websites, many of which are identified as malicious redirectors or part of a link farm. The document body, though partially corrupted, suggests a lure related to 'Class 9 biology notes in hindi pdf', aiming to trick users into clicking on the embedded malicious URLs. The ML classifier strongly indicates malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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://ggtraff.ru/mozel?keyword=class+9+biology+notes+in+hindi+pdf In PDF document text
- http://dadus.hnossa.com/uploads/1/3/0/7/130776795/zujuw.pdfIn PDF document text
- http://fibuk.efungpstours.com/uploads/1/3/0/8/130814575/165030.pdfIn PDF document text
- http://files.karuewachiraphotography.com/uploads/1/3/1/6/131606046/dekojalojuje-votux.pdfIn PDF document text
- http://rebejufa.cindyskombucha.com/uploads/1/3/1/6/131606279/8139640.pdfIn PDF document text
- http://levono.mydesignsbypamela.com/uploads/1/3/2/3/132303054/muxikagepeto-xefunudofon-mopotuso-mupokoweguvug.pdfIn PDF document text
- http://wojiw.namastebh.com/uploads/1/3/2/6/132681382/bf532bf565.pdfIn PDF document text
- http://files.cartilagehelp.com/uploads/1/3/1/4/131452741/921914.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://uploads.strikinglycdn.com/files/9ae965f0-1602-4b18-8a7a-ce5cb870f764/22513180371.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/20c1fc88-5350-4971-8e6c-6924ef7f227d/pizadenani.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bd04fddd-9d02-4a4f-b434-2bd56944a0c3/besinugiviwebefamuta.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1ab779d5-1dd4-4550-838a-1ec714c4300e/vuxopabokuku.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f0ce2430-7f38-4b10-8234-c916f50453cb/48928701789.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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006930.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6930 | 5416 bytes |
SHA-256: 3d0db62a219180801bfc6cb747692dcddf86a2cb9bda0255a19c9cbe3844da04 |
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font_01_sfnt_off00007b91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B91 | 3720 bytes |
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b |
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font_02_sfnt_off000086f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86F4 | 10020 bytes |
SHA-256: be72c19bf67dbc8309ef65a8e578a38d10a9ee833d4b55039cdefdd4d270950f |
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font_03_sfnt_off0000a94c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA94C | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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font_04_sfnt_off0000b74e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB74E | 13684 bytes |
SHA-256: 9675944187e3588f19a4d757e7e5c1ce4817dc239218039c136a6ec2df7e2fdf |
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