MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by a machine learning classifier and contains a significant number of embedded links, many of which point to redirector infrastructure. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=capitulo+3a-+8+realidades+2+answers'. The presence of a link farm suggests an attempt to distribute malicious content or phish users. No scripts were extracted from this sample.
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=capitulo+3a-+8+realidades+2+answers
- https://static.usrfiles.com/ugd/83b1b3_4f64ab3460dd4020a303ed6c790627b7.pdf
- https://static.usrfiles.com/ugd/15cd4d_c379d16421904eccbb5509f217d601e1.pdf
- https://static.usrfiles.com/ugd/b8c837_ff09e15e8566437586da748741ea1a6a.pdf
- https://static.usrfiles.com/ugd/b8c837_5eed99d82ee74410ab42ccda4f97eaf5.pdf
- https://static.usrfiles.com/ugd/b8c837_220d34b0ee7145bb91b7869276fc9fa7.pdf
- https://cdn.shopify.com/s/files/1/0430/8100/7255/files/49599087821.pdf
- https://cdn.shopify.com/s/files/1/0437/1772/2280/files/pilevonemipiramafejit.pdf
- https://cdn.shopify.com/s/files/1/0434/4076/7132/files/jang_newspaper_25_august_2020_download.pdf
- https://static.usrfiles.com/ugd/b8c837_7b4e67165c1340dc9c99ea615bc83a72.pdf
- https://static.usrfiles.com/ugd/b8c837_16064dedc23c41148a2f399905ceec76.pdf
- https://static.usrfiles.com/ugd/078c79_68a191fb619249bca853d5398ba43364.pdf
- https://static.usrfiles.com/ugd/6cfc61_afad70783e6f4ef89a25308a6e33d68f.pdf
- https://static.usrfiles.com/ugd/a58b01_3b4b63f75dc546439ddcecd78bbe2030.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_off000053ed.bin0357a6c787c11e3efb3f71727f926d269dc604488f79f206e262a924478b05cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53ED | 5472 bytes |
font_01_sfnt_off000066a4.binb3f69144036e66ceae9c90e2167f461d6d59e7fc7d482327e5c420ef53a33f4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66A4 | 10500 bytes |
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