MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many pointing to external PDFs, which is indicative of a link farm. One of the primary links, 'https://ttraff.com/wb?keyword=eduardo%20garcia%20maynez%20libros%20pdf', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links.
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/wb?keyword=eduardo%20garcia%20maynez%20libros%20pdf
- http://files.junkim666.com/uploads/1/3/1/8/131856318/davude_wuxuzokimilu_pepuwovad.pdf
- http://files.spencerscustomwood.com/uploads/1/3/2/6/132681884/fakedemetiwojezad.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/2041/7181/files/marketing_strategies_for_agricultural_products.pdf
- https://cdn.shopify.com/s/files/1/0430/9526/1348/files/delukaw.pdf
- https://cdn.shopify.com/s/files/1/0429/0917/1879/files/zozevupoxunokelanezugul.pdf
- https://cdn.shopify.com/s/files/1/0435/3848/1311/files/wind_dragon_summoners_war.pdf
- https://cdn.shopify.com/s/files/1/0429/2696/4895/files/4348936149.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/porovurujapiganipuzul.pdf
- https://cdn.shopify.com/s/files/1/0432/5693/8658/files/writing_inequalities_from_word_problems_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0433/0484/5465/files/94861591937.pdf
- https://cdn.shopify.com/s/files/1/0430/6137/9221/files/nokowatiwevivubopave.pdf
- https://cdn.shopify.com/s/files/1/0432/7433/8454/files/35982621609.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_off00005ef5.binf1afd9e0321648bf38622adf4a8f10672e047c37cd38681425cb9dd91fc0a394 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EF5 | 5724 bytes |
font_01_sfnt_off00007265.bin3a3e647c7c923b265616745fee2a78ae6d072a9b80fd1c2bb51ecc4406881bc8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7265 | 15868 bytes |
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