MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'ttraff.ru'. Additionally, PDF_SEO_LINK_FARM indicates a large number of embedded links to other PDFs, suggesting a link farm or SEO poisoning attempt. The ML classifier also flagged the PDF with high confidence. The embedded URLs and the nature of the heuristics strongly suggest a malicious redirector or phishing attempt.
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/wix?keyword=student+engagement+checklist
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/7917/2257/files/photoshop_cs5_cracks.pdf
- https://cdn.shopify.com/s/files/1/0432/3291/9720/files/17138946647.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/dusafufarozisumam.pdf
- https://cdn.shopify.com/s/files/1/0435/8550/3393/files/pikobodawizuperusutazeku.pdf
- https://cdn.shopify.com/s/files/1/0448/0322/7809/files/austenite-_ferrite_phase_transformation.pdf
- https://cdn.shopify.com/s/files/1/0430/0596/8537/files/basic_chemistry_timberlake_4th_edition.pdf
- https://cdn.shopify.com/s/files/1/0437/4121/6929/files/40719833372.pdf
- https://cdn.shopify.com/s/files/1/0432/3747/4472/files/fawuwofotarasobuki.pdf
- https://cdn.shopify.com/s/files/1/0431/8517/6736/files/78123923623.pdf
- https://cdn.shopify.com/s/files/1/0431/4329/9234/files/54310335268.pdf
- https://static.usrfiles.com/ugd/b8c837_2fe25d6526324c378ceb3e72ea834f89.pdf
- https://static.usrfiles.com/ugd/76156b_0dac7e4bca7b450c824aec5d1dcf7ab0.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_off0000625b.binbbd14a6f570e810657ef33c5955fd8bb674b8f020281073c92e7eea409a98473 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x625B | 5424 bytes |
font_01_sfnt_off00007499.bine11f7ffa661754287c4f386f8c5e9e1bcb070ce3049441f4e18489186e246c04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7499 | 10124 bytes |
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