MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged by a machine learning model as malicious and contains numerous embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=test+for+sulfate+ions+chemguide', which is also listed as a malicious redirector. The presence of a link farm suggests an attempt to manipulate search engine results or distribute traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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://ttraff.ru/pify?keyword=test+for+sulfate+ions+chemguide
- http://zibiwug.qualityfoodvi.com/uploads/1/3/0/7/130739626/1092803.pdf
- http://files.positiveposturenz.com/uploads/1/3/1/4/131483550/sivaf_polatafi_zuwovil.pdf
- http://fupij.apologeticsinthechurch.com/uploads/1/3/0/9/130969352/4569810.pdf
- https://cdn.shopify.com/s/files/1/0430/6701/5322/files/lavav.pdf
- https://cdn.shopify.com/s/files/1/0437/4619/7653/files/fasopali.pdf
- https://cdn.shopify.com/s/files/1/0432/9802/9733/files/harvard_citation_style_example.pdf
- https://cdn.shopify.com/s/files/1/0454/7251/4206/files/business_vocabulary_in_use_elementary_to_pre_intermediate.pdf
- https://cdn.shopify.com/s/files/1/0437/2342/3912/files/kuzujafi.pdf
- https://cdn.shopify.com/s/files/1/0440/0293/4942/files/52281123681.pdf
- https://cdn.shopify.com/s/files/1/0438/0344/3361/files/zixevegimobimuxixuxujuk.pdf
- https://cdn.shopify.com/s/files/1/0434/5335/0053/files/carnatic_music_notes_in_kannada.pdf
- https://cdn.shopify.com/s/files/1/0434/1645/3272/files/vusobomesotu.pdf
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/gaxinesotureniserorabox.pdf
- https://cdn.shopify.com/s/files/1/0431/3628/6877/files/93704691769.pdf
- https://cdn.shopify.com/s/files/1/0448/1161/6418/files/pdf_architect_2._0.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000138f4.bin7e5fca049e461f316cc7a73b0eb14c3dfdee5db9d250a313d9afe0cb30bf69b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138F4 | 5384 bytes |
font_01_sfnt_off00014b12.bind4e60af50c730cf28586e827eadc48dd8f9451cf4e5a4e97a991faa10a496a3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B12 | 14372 bytes |
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