MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm designed to mimic search results, directing users to potentially malicious content. The ML classifier also 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/pify?keyword=bestiariusz+s%25C5%2582owia%25C5%2584ski+pdf+chomikuj
- http://files.arunabhasengupta.com/uploads/1/3/2/6/132682716/1359087.pdf
- http://files.gonzalodeamarante.com/uploads/1/3/0/8/130814192/9815767.pdf
- http://files.abileneptsportsrehab.com/uploads/1/3/0/8/130874583/d1d2b52cd742ee.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/6332/0471/files/nebabi.pdf
- https://cdn.shopify.com/s/files/1/0440/6332/6358/files/0105_que_banco_es.pdf
- https://cdn.shopify.com/s/files/1/0438/2241/6029/files/bsc_3rd_year_math_notes.pdf
- https://cdn.shopify.com/s/files/1/0439/8972/9438/files/bise_lahore_9th_class_gazette_2020.pdf
- https://cdn.shopify.com/s/files/1/0429/6795/7658/files/92217173340.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/matam.pdf
- https://cdn.shopify.com/s/files/1/0430/0167/5939/files/gigofalobip.pdf
- https://cdn.shopify.com/s/files/1/0430/9562/1786/files/payroll_accounting_journal_entries.pdf
- https://cdn.shopify.com/s/files/1/0428/8747/9455/files/samururipigijina.pdf
- https://cdn.shopify.com/s/files/1/0440/4461/5830/files/ximosutumevogulax.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_off0000547a.bined1be6a32922b59d354cfcfcdba7b92f7a8e617fcbfd8dc2b2feb4b21b5b3657 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x547A | 5876 bytes |
font_01_sfnt_off0000683f.bin245ab16597830e52b8143b3be7fdc82584f879737fa88001ebb7d89598bbe7d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x683F | 11380 bytes |
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