MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, many of which point to external resources, including a known malicious redirector. The document body itself is heavily obfuscated but contains a URL that appears to be part of a link farm strategy. The primary malicious link identified is https://ttraff.ru/pify?keyword=the+difference+between+phonetics+and+phonology+with+examples+pdf, which is likely used to redirect users to further malicious content. The ML classifier strongly indicated maliciousness.
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=the+difference+between+phonetics+and+phonology+with+examples+pdf
- http://files.familybusinessonthemoon.com/uploads/1/3/0/8/130814597/3099945.pdf
- http://files.andymanley.com/uploads/1/3/0/9/130969939/ranukexirugipesirow.pdf
- http://files.immaculateconceptionlakeland.com/uploads/1/3/1/3/131378990/8142720.pdf
- https://cdn.shopify.com/s/files/1/0430/5689/0013/files/30973872508.pdf
- https://cdn.shopify.com/s/files/1/0437/4259/3189/files/82950651306.pdf
- https://cdn.shopify.com/s/files/1/0433/3607/3366/files/winixitokijino.pdf
- https://cdn.shopify.com/s/files/1/0429/9377/8837/files/6777779980.pdf
- https://cdn.shopify.com/s/files/1/0436/4029/1486/files/determinant_of_a_matrix_calculator.pdf
- https://cdn.shopify.com/s/files/1/0432/3491/8568/files/murotokavufi.pdf
- https://cdn.shopify.com/s/files/1/0430/7045/5965/files/sawuvatosufekewal.pdf
- https://cdn.shopify.com/s/files/1/0434/0265/7957/files/88593602984.pdf
- https://cdn.shopify.com/s/files/1/0451/3277/5589/files/time_in_pst_now.pdf
- https://cdn.shopify.com/s/files/1/0435/8642/0893/files/suzosekanase.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mudamizoxudaxusuzo.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_off00005e5c.bineb3299d480428b707f5e8481b266fe06300241edf415022d945e63667b21ed5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E5C | 5920 bytes |
font_01_sfnt_off0000726b.bin595a09b8b7a3582f1185f3fe22f1f356a9fc1c9bcece2bad0a4ec3fa4c9b5698 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x726B | 10500 bytes |
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