MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to mimic search results for software downloads, specifically 'autocad 2013 free trial full version'. The primary URL, https://ttraff.ru/pify?keyword=autocad+2013+free+trial++full+version, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and numerous other links to PDF files hosted on various domains, suggesting a coordinated effort to drive traffic to potentially malicious sites. The ML classifier strongly supports the malicious nature of this PDF.
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=autocad+2013+free+trial++full+version
- http://files.bossmomlife.club/uploads/1/3/1/3/131398291/6714581.pdf
- http://tujot.creativeprintables.org/uploads/1/3/1/8/131871578/paloladekoto-xemel-mepemek.pdf
- http://files.beltonrvpark.com/uploads/1/3/1/3/131379894/7682209.pdf
- http://zilezoze.investwithsmdc.com/uploads/1/3/2/8/132814956/zutuzifixi.pdf
- https://cdn.shopify.com/s/files/1/0433/8037/5702/files/29855652215.pdf
- https://cdn.shopify.com/s/files/1/0432/0781/9422/files/bozusojamalofaretebipiwu.pdf
- https://cdn.shopify.com/s/files/1/0446/7671/0563/files/ms_excel_interview_questions_and_answers_for_freshers.pdf
- https://cdn.shopify.com/s/files/1/0430/3516/4835/files/36732177681.pdf
- https://cdn.shopify.com/s/files/1/0437/5068/6874/files/sowonegarutaferasobunoz.pdf
- https://cdn.shopify.com/s/files/1/0434/0934/2621/files/game_programming_patterns_robert_nystrom.pdf
- https://cdn.shopify.com/s/files/1/0440/8855/7718/files/cyrano_de_bergerac_espaol.pdf
- https://cdn.shopify.com/s/files/1/0454/7146/5630/files/handwriting_worksheets_cursive_alphabet.pdf
- https://cdn.shopify.com/s/files/1/0437/5648/6807/files/25925611837.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_off000060bf.binb8aa0d584eeaeeb2e026ee6b47402f3df2a34d293f7bfcbf40ccb100a1f5ff2b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60BF | 5556 bytes |
font_01_sfnt_off000073ba.bin3794c00e38e14900aa529af838e6610c65d69062caf3051d675ac57c787e4ad2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73BA | 10248 bytes |
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