MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to benign Shopify URLs, but also includes a critical link to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'free printable addition math worksheets for kindergarten' and the malicious URL, suggesting a lure. The presence of PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics strongly indicates malicious intent, likely for SEO manipulation or to redirect 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=free+printable+addition+math+worksheets+for+kindergarten
- http://files.thesickleinme.org/uploads/1/3/2/6/132681342/kizipefi_bozopizozuna.pdf
- http://files.blackdustsculptures.com/uploads/1/3/1/4/131453645/zukonid.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/8670/8893/files/is_nch_software_safe.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11067845032.pdf
- https://cdn.shopify.com/s/files/1/0429/2060/7900/files/electrical_engineering_mcqs_book_by_handa_download.pdf
- https://cdn.shopify.com/s/files/1/0429/0589/5075/files/nasafilejunimazaze.pdf
- https://cdn.shopify.com/s/files/1/0428/1335/8247/files/zisarugoxilorod.pdf
- https://cdn.shopify.com/s/files/1/0437/3502/3770/files/92475595076.pdf
- https://cdn.shopify.com/s/files/1/0432/1925/5454/files/how_do_i_search_a_in_chrome.pdf
- https://cdn.shopify.com/s/files/1/0429/9092/8026/files/serial_aimersoft_video_converter_ultimate.pdf
- https://cdn.shopify.com/s/files/1/0434/3152/6561/files/delete_watermark_online.pdf
- https://cdn.shopify.com/s/files/1/0431/0718/8898/files/sugujujudikuzorev.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006606.bin940c421a13321826578c7dd342ca61640a464209963d294eafc60be686a75e7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6606 | 5704 bytes |
font_01_sfnt_off00007947.bin83adbd41e8c307ac2f9d980db97adaaf28165ce7c0d9be143b3b578d3cf40e07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7947 | 11936 bytes |
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