MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded links that point to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'study guide' and a URL that appears to be part of a link farm. The primary malicious link identified is ttraff.ru, which is flagged as a redirector.
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=best+study+guide+for+ap+computer+science
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/ab0441_e67196e040e8435dbe5b783abe68626f.pdf
- https://static.usrfiles.com/ugd/b8c837_8731ca8a8b6c45afb1c21e8d644fb998.pdf
- https://static.usrfiles.com/ugd/b8c837_e7d1ee1b78a9442ca693c84e1bd26f27.pdf
- https://static.usrfiles.com/ugd/97634b_48011ea11b224c43acac27ae445bf1fc.pdf
- https://static.usrfiles.com/ugd/760101_298fe3b03a4144d1bbcf73e5c6ae218e.pdf
- https://cdn.shopify.com/s/files/1/0437/8152/1560/files/wozixukenunebupudupuwuxaf.pdf
- https://cdn.shopify.com/s/files/1/0435/1688/7192/files/printing_press_company_profile.pdf
- https://cdn.shopify.com/s/files/1/0437/6395/7914/files/lupetaziderakuwoniv.pdf
- https://cdn.shopify.com/s/files/1/0427/9762/9596/files/69213918032.pdf
- https://cdn.shopify.com/s/files/1/0433/6300/8661/files/attestation_d_hbergement_prefecture_hauts_de_seine.pdf
- https://cdn.shopify.com/s/files/1/0435/5312/8612/files/38042280441.pdf
- https://cdn.shopify.com/s/files/1/0429/7008/7587/files/51275359250.pdf
- https://cdn.shopify.com/s/files/1/0431/2891/4074/files/87693602150.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/miwiwepivu.pdf
- https://cdn.shopify.com/s/files/1/0431/8206/3777/files/rokafevefogefevexezizugo.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_off0000692c.bin58f6db39f7fd972c3b5dadaf26c0222e9b4c9bfe0213875dd469e57b4b685b59 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x692C | 5596 bytes |
font_01_sfnt_off00007c24.bin4078d9aa4a85d4143c2823efd653eaf24e0e818dafad421015f35894a64453d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C24 | 10072 bytes |
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