MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify and other domains, suggesting a link farm or SEO manipulation tactic. One prominent URL, 'https://ttraff.ru/pify?keyword=algebra+formulas+with+examples+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this same URL and appears to be a lure for users searching for algebra formulas.
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=algebra+formulas+with+examples+pdf
- http://files.chivasuka.com/uploads/1/3/0/8/130874599/dbff0a0ea9a2369.pdf
- http://files.marilyndavidsonflatware.com/uploads/1/3/1/3/131379894/wanekudesozojek_naximajivojasuw.pdf
- http://files.chalmerslondon.com/uploads/1/3/1/4/131453018/dojedesonixix_mevisexatixu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/9539/9325/files/43629977295.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90262961418.pdf
- https://cdn.shopify.com/s/files/1/0447/9628/0993/files/confusion_will_be_my_epitaph.pdf
- https://cdn.shopify.com/s/files/1/0429/5147/5351/files/xizoxupokax.pdf
- https://cdn.shopify.com/s/files/1/0430/4912/3993/files/check_mysql_version.pdf
- https://cdn.shopify.com/s/files/1/0433/8617/5651/files/nuwave_oven_elite.pdf
- https://cdn.shopify.com/s/files/1/0432/6211/6008/files/xanefifuxoditejogok.pdf
- https://cdn.shopify.com/s/files/1/0440/8039/8486/files/10999636355.pdf
- https://cdn.shopify.com/s/files/1/0434/5783/9254/files/3603107738.pdf
- https://cdn.shopify.com/s/files/1/0437/8905/8206/files/dujapibuk.pdf
- https://cdn.shopify.com/s/files/1/0435/5263/7091/files/zoxudifakipud.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_off00009372.bin42d7d3d3c56410d0308266176c38e596783feccae98684c9ba4d556b59437d9d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9372 | 5744 bytes |
font_01_sfnt_off0000a6e5.bina7c3d95246d8ed19c287afb555ad95c440562ca39a010e44ecf10e580895c121 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA6E5 | 14268 bytes |
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