MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The document's structure suggests it is part of a link farm designed to drive traffic to potentially harmful sites. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector URL supports this assessment.
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=coordinate+plane+quadrants+blank+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0452/7154/8066/files/spark_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0431/7279/0427/files/zumotumexodemaz.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41758367329.pdf
- https://cdn.shopify.com/s/files/1/0432/4117/7256/files/guild_wars_2_elementalist_guide.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71340125447.pdf
- https://cdn.shopify.com/s/files/1/0431/9117/3278/files/74874803631.pdf
- https://cdn.shopify.com/s/files/1/0440/6142/5814/files/bandit_150xp_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/9482/6396/files/emitra_new_rate_list_2020.pdf
- https://cdn.shopify.com/s/files/1/0431/5024/6054/files/wafenenopa.pdf
- https://static.usrfiles.com/ugd/61b8bf_7974ad34d21a4b21b4e2735b00c22ef7.pdf
- https://static.usrfiles.com/ugd/760101_291965b74cc64174bc71b658f9f24d07.pdf
- https://static.usrfiles.com/ugd/65b209_a4632a21ade641b7a0be8c201db30d9b.pdf
- https://static.usrfiles.com/ugd/b8c837_7639605d2e23480d8678cb82f7e0aed6.pdf
- https://static.usrfiles.com/ugd/b8c837_95e37550f5e44b318819e444bdd307da.pdf
- https://static.usrfiles.com/ugd/4bb894_d7bf2cad15d04901b1174b1039b60a27.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_off00006783.binf40d01a57c03221a872f99cc99dbc07b76bd277a6dfd4603f37cf58cc9a96d88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6783 | 5268 bytes |
font_01_sfnt_off0000796e.bine14db425e864293d5946937367a69e836de461329e916e749ebefdf4b2869e32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x796E | 10396 bytes |
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