MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to distribute further malware. The document body, though partially corrupted, contains text related to 'Soluciones biologia y geologia 3 eso' and appears to be a lure to encourage clicking the embedded malicious link. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO poisoning or traffic redirection.
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/wix?keyword=soluciones+biologia+y+geologia+3+eso
- https://static.usrfiles.com/ugd/eed56f_ec2ed2f9f3bc437b8009715a0e3736ca.pdf
- https://static.usrfiles.com/ugd/4dd980_3b1bad6180134b4ea39dba75b6e6db83.pdf
- https://static.usrfiles.com/ugd/e2c6c1_b62d928b21214fb28922e1234e4badfa.pdf
- https://static.usrfiles.com/ugd/b8c837_7ab2735ed65648c4a259943546cac86a.pdf
- https://cdn.shopify.com/s/files/1/0439/7786/7422/files/nhs_elective_c_section_guidelines.pdf
- https://cdn.shopify.com/s/files/1/0436/4884/3934/files/54993125414.pdf
- https://cdn.shopify.com/s/files/1/0431/8072/0294/files/gezawirupajibuloxenuv.pdf
- https://cdn.shopify.com/s/files/1/0465/0575/4776/files/clearance_sheet_vinyl.pdf
- https://cdn.shopify.com/s/files/1/0438/1884/4322/files/zavuwesazerojib.pdf
- https://cdn.shopify.com/s/files/1/0437/6369/5770/files/xiloxosejasurusajilit.pdf
- https://cdn.shopify.com/s/files/1/0432/6401/6539/files/pitugaxotodotumowerivalor.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6219719719.pdf
- https://cdn.shopify.com/s/files/1/0434/6177/1430/files/32709566668.pdf
- https://cdn.shopify.com/s/files/1/0463/1314/4482/files/fesovuvojixowebo.pdf
- https://cdn.shopify.com/s/files/1/0464/8511/0952/files/8152498480.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_off00006452.bin616f66eaa3816ac06a9cf3081a367622d2dc56ee671ed422c16e6bf393074d21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6452 | 5380 bytes |
font_01_sfnt_off000076ae.bin207c422f4f0b09a77d6b18c6ff5f405c43c3a4c1f4d6c8b6caeb8a52cc9548a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76AE | 11580 bytes |
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