MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary links points to a known malicious redirector, ttraff.ru, which is likely used to funnel victims to further malicious content. The document body, though heavily obfuscated, contains the same redirector URL and references to PDF documents hosted on static.usrfiles.com, suggesting a link farm strategy.
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=moles+molecules+and+grams+worksheet+cavalcade+publishing
- https://static.usrfiles.com/ugd/9d66c7_fe1e44ca7cf04807b650d7aa975e62a0.pdf
- https://static.usrfiles.com/ugd/f5892c_0e4246eb83a84767b30f4478151986c5.pdf
- https://static.usrfiles.com/ugd/a6e5e9_72e17c4830cd40e59d006b8664adf7cf.pdf
- https://static.usrfiles.com/ugd/b8c837_9f0f3d8a588b4fbaaa6e81487594759e.pdf
- https://static.usrfiles.com/ugd/fbccce_4668e72139824be99406c3751f6f72c9.pdf
- https://static.usrfiles.com/ugd/6cf804_56a64308971846e39c94e471e23ac10e.pdf
- https://static.usrfiles.com/ugd/b8c837_1d50b7e52fc346ba9299f91c652bb6f6.pdf
- https://static.usrfiles.com/ugd/a2ebd8_a45cf0030ae74c68b3f8f24eb25beaa2.pdf
- https://static.usrfiles.com/ugd/b8c837_0594815748e246db8b4e46d8f2873dbc.pdf
- https://static.usrfiles.com/ugd/07ef24_3f362a747d6a4ac19f8ebae0394ebbc5.pdf
- https://cdn.shopify.com/s/files/1/0440/8573/9670/files/bamuv.pdf
- https://cdn.shopify.com/s/files/1/0438/1389/6352/files/portuguese_english_bilingual_visual_dictionary.pdf
- https://cdn.shopify.com/s/files/1/0433/1087/4777/files/zuvarirorasidugum.pdf
- https://cdn.shopify.com/s/files/1/0428/9649/0663/files/52285194251.pdf
- https://cdn.shopify.com/s/files/1/0432/2482/6014/files/83137306708.pdf
- https://cdn.shopify.com/s/files/1/0469/0477/0720/files/2nd_grade_division_worksheets_with_pictures.pdf
- https://cdn.shopify.com/s/files/1/0430/1779/7785/files/wuxorujukesudotutabojel.pdf
- https://cdn.shopify.com/s/files/1/0433/8148/9818/files/telugu_arya_2_film_video_songs.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_off00004e0a.bin2268ce6f6b03a08946f558053e8c860fad6ceae3dc347d358b4e679f60488666 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E0A | 5848 bytes |
font_01_sfnt_off000061e5.bin3ed874c202d761982f5abe751f969093adf8e9b0b0320f79e67935548cff36b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61E5 | 10632 bytes |
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