MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors, as indicated by the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. The primary malicious URL identified is https://ttraff.ru/pify?keyword=introduction+to+asymptotic+analysis+pdf, which is likely used to redirect users to further malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
-
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.
-
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.
-
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.
-
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=introduction+to+asymptotic+analysis+pdf
- http://xisutowo.tfhop.org/uploads/1/3/1/4/131437044/1308877.pdf
- http://files.apentertainment607.com/uploads/1/3/0/8/130873718/kuzotukuwiku.pdf
- http://files.jameswestdavidson.com/uploads/1/3/1/3/131381332/sigesunoxex-basixif.pdf
- http://files.incident-services.com/uploads/1/3/1/4/131452904/5042206700ec03e.pdf
- http://nuzilolos.lawpenrose.com/uploads/1/3/1/4/131453109/jifari.pdf
- https://cdn.shopify.com/s/files/1/0439/1292/1256/files/vulawotarerivosunoxa.pdf
- https://cdn.shopify.com/s/files/1/0434/7936/7845/files/89420803107.pdf
- https://cdn.shopify.com/s/files/1/0432/9940/5977/files/farapivajeki.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdf
- https://cdn.shopify.com/s/files/1/0430/8061/4041/files/sapusezinukagilemolosujod.pdf
- https://cdn.shopify.com/s/files/1/0430/3906/4225/files/penirokubitenavegefodegib.pdf
- https://cdn.shopify.com/s/files/1/0430/6799/8359/files/63628403869.pdf
- https://cdn.shopify.com/s/files/1/0437/1018/5621/files/stephen_jay_gould_ontogeny_and_phylogeny.pdf
- https://cdn.shopify.com/s/files/1/0432/8580/7268/files/54260302884.pdf
- https://cdn.shopify.com/s/files/1/0434/5780/6486/files/lawalunizelag.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_off00005ff1.bin91e9dfc3d104fd93f42adc3eed2eb86280f12fd2cdff2123f8093776f6e6d2fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FF1 | 5340 bytes |
font_01_sfnt_off0000720b.bina87ef1388f546b8e7dc1af9e4607ff1bb53cebde8eeb00c4e08b40fdeae8a42f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x720B | 10436 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.