MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains a link disguised as a software update notification for Adobe Acrobat Reader, directing users to 'ttraff.cc'. This URL is flagged as a malicious redirector. The document also features a large number of external PDF links, many hosted on 'static.usrfiles.com', suggesting a link farm or SEO poisoning tactic to increase visibility. 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.cc/wix?keyword=old+version+acrobat+reader+dc
- https://static.usrfiles.com/ugd/63d3ad_c16a3ce5761a45a4bc042a216a9495ce.pdf
- https://static.usrfiles.com/ugd/47b1e8_820baa075182491abb245d76f08da3a6.pdf
- https://static.usrfiles.com/ugd/b8c837_b03e46931a834a4abe0d87883e5c7738.pdf
- https://static.usrfiles.com/ugd/b8c837_cbde0697eade453e89748eba8e4cc329.pdf
- https://static.usrfiles.com/ugd/b8c837_0d1c67659093413da620fc3c1c1b5d42.pdf
- https://cdn.shopify.com/s/files/1/0448/8046/1991/files/libro_para_colorear_lol.pdf
- https://cdn.shopify.com/s/files/1/0439/4647/5675/files/ludwig_s_angina.pdf
- https://cdn.shopify.com/s/files/1/0438/2857/6416/files/paulk_compact_workbench.pdf
- https://cdn.shopify.com/s/files/1/0428/2590/8383/files/81165690667.pdf
- https://static.usrfiles.com/ugd/7dd30d_8a6fae9c9fa64f3499acaf0107579dda.pdf
- https://static.usrfiles.com/ugd/b8c837_c3627c8100d844888d7e80be0a9117e7.pdf
- https://static.usrfiles.com/ugd/9b7d8a_db170882722f441299faf72624694527.pdf
- https://cdn.shopify.com/s/files/1/0427/4647/8759/files/perforated_metal_sheet_melbourne.pdf
- https://cdn.shopify.com/s/files/1/0431/8386/6018/files/lavarirupuvagomabubenizi.pdf
- https://cdn.shopify.com/s/files/1/0433/5039/2984/files/58038244075.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_off00005d45.bind019edf31f5b6f77a8174a1708c2e59c9e971446e4b4bc56ee398751a171c808 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D45 | 5160 bytes |
font_01_sfnt_off00006ed9.bin6c669f75d8e07adf427eb515fcb6d3feb9997eb671a4830ad276db9386e264d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ED9 | 13996 bytes |
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