MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. Additionally, a heuristic indicates a PDF link farm with numerous external links, many pointing to 'usrfiles.com'. This suggests an attempt to direct users to potentially harmful content or download further malware.
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.com/pify?keyword=status+epilepticus+guidelines+2016+ilae
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b916f4_5e92c9d0810b4ce6a6197603a74eec34.pdf
- https://static.usrfiles.com/ugd/ce5d00_b76c2d841044429fb8ce535d4b1af077.pdf
- https://static.usrfiles.com/ugd/c33cdb_33278ce433a04f78ac3b20ca17fc037b.pdf
- https://cdn.shopify.com/s/files/1/0431/8560/2721/files/52656944250.pdf
- https://cdn.shopify.com/s/files/1/0434/3873/5527/files/free_games_pogo.pdf
- https://cdn.shopify.com/s/files/1/0433/5904/3749/files/bapifujowovimazufu.pdf
- https://cdn.shopify.com/s/files/1/0428/5802/1027/files/nizaruwodubiraxarezij.pdf
- https://cdn.shopify.com/s/files/1/0430/8461/1737/files/41626105760.pdf
- https://cdn.shopify.com/s/files/1/0438/0714/6146/files/rafipodebubinovurunonivo.pdf
- https://cdn.shopify.com/s/files/1/0438/4158/5314/files/this_cowboy_s_hat_lyrics.pdf
- https://static.usrfiles.com/ugd/2f7815_a03b4c6b41ef42e5964f17bd3d3e1241.pdf
- https://static.usrfiles.com/ugd/451461_faedeb8db3e543b2ae73952f5690f057.pdf
- https://static.usrfiles.com/ugd/b8c837_59962bd600ad464d9eb0dc9e5e75b475.pdf
- https://static.usrfiles.com/ugd/370b54_985976e920c84352893ae2855762f2ef.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_off00006bc6.bin52860fefa02a7e4c31555002e8219b45c7b7019d5b837c60b5179955b513506d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BC6 | 5728 bytes |
font_01_sfnt_off00007f57.bin75a2a8126c68a63e230502c0e14a2d9b0b442893ac8056cf587df0ca75437ce2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F57 | 10088 bytes |
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