MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged by a machine learning classifier and contains numerous embedded links. One of these links, https://ttraff.ru/wb?keyword=worksheet%20verbs%20kindergarten, points to known malicious redirector infrastructure. The document body itself is heavily obfuscated but contains references to the same malicious URL and a large number of other URLs hosted on Shopify, suggesting a link farm designed to lure 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/wb?keyword=worksheet%20verbs%20kindergarten
- http://files.camptonforward.com/uploads/1/3/0/8/130814397/nimifale.pdf
- http://files.satekuu.com/uploads/1/3/0/8/130814110/migidavedif.pdf
- http://guruwigi.14barreldesigns.com/uploads/1/3/1/4/131437812/mesewosigoj.pdf
- https://cdn.shopify.com/s/files/1/0427/5575/2103/files/17598273772.pdf
- https://cdn.shopify.com/s/files/1/0435/6302/4542/files/bopozikegoboburu.pdf
- https://cdn.shopify.com/s/files/1/0431/8062/1984/files/forever_2014_tv_series.pdf
- https://cdn.shopify.com/s/files/1/0430/5226/9717/files/51548064897.pdf
- https://cdn.shopify.com/s/files/1/0429/6625/3724/files/foduzotalokakajaperolizi.pdf
- https://cdn.shopify.com/s/files/1/0436/2105/6672/files/design_patterns_in_java_interview_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0430/7176/6690/files/41289693502.pdf
- https://cdn.shopify.com/s/files/1/0432/3953/8851/files/58602540888.pdf
- https://cdn.shopify.com/s/files/1/0431/7757/4562/files/sobirininasize.pdf
- https://cdn.shopify.com/s/files/1/0431/8108/0725/files/mupikexifem.pdf
- https://cdn.shopify.com/s/files/1/0436/5549/5833/files/66714414411.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_off00005878.bina0ecc7701ca8a3c651c37cbe780850a7969c6e1f85067fb5cde6cf53e998bc25 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5878 | 5332 bytes |
font_01_sfnt_off00006aa6.bin8797f156aaf980e74a07460fde8161adbf3beea2724f882ad3348890212f6488 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA6 | 10348 bytes |
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