MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it is a redirector link. The document body, though partially corrupted, contains text related to 'Scp secret laboratory guide' and a URL that points to a redirector. The PDF also contains a large number of embedded links, many of which point to static.usrfiles.com, but the primary malicious indicator is the ttraff.ru redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=scp+secret+laboratory+guide
- https://static.usrfiles.com/ugd/b8c837_51dff2fc513d4c2ba5afc9482df72f35.pdf
- https://static.usrfiles.com/ugd/b8c837_c33b2911070047f5bcef2f751b8f7695.pdf
- https://static.usrfiles.com/ugd/b8c837_a70d14e4017c4f3e9b472845f8e7e8a8.pdf
- https://static.usrfiles.com/ugd/b8c837_bf61f774c19b443a903950b9e101538c.pdf
- https://static.usrfiles.com/ugd/b8c837_ea735fdcc4144816a5698b08680218e5.pdf
- https://static.usrfiles.com/ugd/b8c837_6428d094ffd544ac8253c4fc7f9177d9.pdf
- https://static.usrfiles.com/ugd/b8c837_5cf9f4b5e50c407bb75fc8dc116f831f.pdf
- https://static.usrfiles.com/ugd/b8c837_442a4f9bbafe4f37acc50f307a1d90f9.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30740110423.pdf
- https://cdn.shopify.com/s/files/1/0431/1102/2756/files/tevelizipujudumegijadoki.pdf
- https://cdn.shopify.com/s/files/1/0434/3624/5142/files/friendship_story.pdf
- https://cdn.shopify.com/s/files/1/0440/1194/6134/files/deed_of_sale_template.pdf
- https://cdn.shopify.com/s/files/1/0435/5656/9249/files/28981502330.pdf
- https://cdn.shopify.com/s/files/1/0430/2071/4137/files/27744421736.pdf
- https://cdn.shopify.com/s/files/1/0438/7989/1099/files/zowunajixegozeliradajaxez.pdf
- https://cdn.shopify.com/s/files/1/0432/6670/3516/files/fawagifubixe.pdf
- https://cdn.shopify.com/s/files/1/0460/1279/2993/files/begrippenlijst_maatschappijleer_pluriforme_samenleving.pdf
- https://cdn.shopify.com/s/files/1/0431/4952/5156/files/65360150881.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_off00007db9.bindbc68245fba31662132aa2127781ce1102fff9bf1a0a0b1225b95bb7800bfa22 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DB9 | 5588 bytes |
font_01_sfnt_off000090c5.bin5d590dc1a777c3a1cd344771e061d2ddeee55d3ab2641cb9a89630c247ece78b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90C5 | 10116 bytes |
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