MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a bookkeeping template. The ML classifier strongly indicated maliciousness. The document body contains obfuscated text and a reconstructed URL pointing to the malicious redirector, suggesting it's designed to lead users to malicious content.
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=simple+bookkeeping+excel+template
- http://files.readymum.com/uploads/1/3/2/3/132302999/vikemejutiworuse.pdf
- http://pasadev.shfestivalchoir.org/uploads/1/3/1/1/131164104/19f3f5a2407f.pdf
- http://files.projecthost.org/uploads/1/3/1/4/131407958/borupadazu.pdf
- https://cdn.shopify.com/s/files/1/0431/3264/9636/files/online_ordering_system_thesis_documentation.pdf
- https://cdn.shopify.com/s/files/1/0437/6661/2130/files/aavin_milk_price_list_2020.pdf
- https://cdn.shopify.com/s/files/1/0429/6241/9863/files/a_level_biology_carbohydrates.pdf
- https://cdn.shopify.com/s/files/1/0434/5161/3334/files/adobe_indesign_cs6_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/3095/3630/files/3d_shapes_worksheet_year_2.pdf
- https://cdn.shopify.com/s/files/1/0432/3619/6507/files/29494022147.pdf
- https://cdn.shopify.com/s/files/1/0432/5549/6866/files/83952260569.pdf
- https://cdn.shopify.com/s/files/1/0429/4495/4527/files/gezakorinobovopavopamodaf.pdf
- https://cdn.shopify.com/s/files/1/0433/5098/2805/files/importance_of_job_description_in_hrm.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_off00007003.bina205a85f87939c2c080a30ebb2298bf5057d8f0431de40f59a87cb4a0551b970 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7003 | 5352 bytes |
font_01_sfnt_off00008229.bin7946afc8ca29a31431f1d763eb855157d50ceb6764442a0d073a838ad19baf94 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8229 | 10472 bytes |
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