MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=deficiencia+de+aldolasa+b+pdf'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack. The presence of multiple embedded PDF links, as indicated by the PDF_SEO_LINK_FARM heuristic, suggests a link farm strategy to distribute malicious content.
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=deficiencia+de+aldolasa+b+pdf
- https://static.usrfiles.com/ugd/b8c837_6449315d0e44409598dd7ff201f59c26.pdf
- https://static.usrfiles.com/ugd/b8c837_ceab100c7ad044f2b9bdfc36ff82f750.pdf
- https://static.usrfiles.com/ugd/b8c837_8d91c7dd2e1544299dda58d30677f2ce.pdf
- https://static.usrfiles.com/ugd/b8c837_c9c67e83c2b848b2824693c1314b23eb.pdf
- https://cdn.shopify.com/s/files/1/0434/6370/4729/files/convert_arabic_to_english.pdf
- https://cdn.shopify.com/s/files/1/0433/2371/9845/files/39525287187.pdf
- https://cdn.shopify.com/s/files/1/0435/2117/9802/files/dasapepi.pdf
- https://cdn.shopify.com/s/files/1/0429/7365/9292/files/9092377401.pdf
- https://cdn.shopify.com/s/files/1/0437/0278/0057/files/supernatural_yellow_fever.pdf
- https://static.usrfiles.com/ugd/0789d5_1a308d1e26a74d18bca9bb06d120bdba.pdf
- https://static.usrfiles.com/ugd/ea5d7b_107b1587ea404d4fab1a3e69fbffa9a4.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061db.bin6758fa50722bea1b87a47a2178f25f7efd15a73f2d532790fa18cb94f3f0e009 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61DB | 4900 bytes |
font_01_sfnt_off0000728b.binbbd316a2d91063bb6db7bb861757b1a64869b54714af81b191a01f8d8a553cc3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x728B | 11380 bytes |
font_02_sfnt_off000097cc.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97CC | 4324 bytes |
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