MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a search result for educational materials. The ML classifier strongly indicated maliciousness, and the document body contains numerous embedded URLs, many pointing to Shopify domains, likely part of a link farm to obscure the malicious redirector. The primary malicious IOC is the ttraff.ru URL, which redirects to other 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=sadlier+grammar+for+writing+grade+8+answers
- http://files.michelehd.com/uploads/1/3/1/3/131378943/juroriwadosegarotazu.pdf
- http://files.chabadwomensprograms.com/uploads/1/3/0/8/130874379/jularagew.pdf
- https://cdn.shopify.com/s/files/1/0430/9850/5377/files/jukupuwekukamiveli.pdf
- https://cdn.shopify.com/s/files/1/0432/7145/4883/files/spinal_arachnoiditis.pdf
- https://cdn.shopify.com/s/files/1/0429/5596/4569/files/53040375259.pdf
- https://cdn.shopify.com/s/files/1/0428/7424/1183/files/genetic_algorithm_in_java.pdf
- https://cdn.shopify.com/s/files/1/0432/4684/6107/files/83869292616.pdf
- https://cdn.shopify.com/s/files/1/0427/8901/1612/files/xilitadifijobixotok.pdf
- https://cdn.shopify.com/s/files/1/0432/7519/0430/files/80798724313.pdf
- https://cdn.shopify.com/s/files/1/0430/8844/5591/files/sanyo_universal_remote.pdf
- https://cdn.shopify.com/s/files/1/0435/8035/8815/files/nexikakotaborujozuberiv.pdf
- https://cdn.shopify.com/s/files/1/0431/1754/3588/files/76386933877.pdf
- https://cdn.shopify.com/s/files/1/0430/8942/8637/files/excel_advanced_exercises.pdf
- https://cdn.shopify.com/s/files/1/0439/8209/4494/files/vebutedujelokedesalitifof.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_off0000469a.bine6fbb1eb446582db1392ddb10836290b4208cbec6cd5abfc5339cfbe4320780c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x469A | 5616 bytes |
font_01_sfnt_off000059a0.bin902626d093697134882b39facd264f62e8c05fb6993792fde3f76e36be44012d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59A0 | 9868 bytes |
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