MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Addends
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=authentic+assessment+in+language+testing+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to academic content and the tool used to generate the PDF, suggesting a lure to disguise malicious links. The ML classifier also strongly indicated maliciousness.
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/pify?keyword=authentic+assessment+in+language+testing+pdf
- http://files.mrsmayhemshop.com/uploads/1/3/1/4/131453451/ponapakezebaxida.pdf
- http://files.themoveablechurch.org/uploads/1/3/0/8/130874128/9175303.pdf
- http://files.sarakrinitzphotography.com/uploads/1/3/1/0/131070651/2c94f9ba8f678e.pdf
- https://cdn.shopify.com/s/files/1/0430/1262/0447/files/rosewa.pdf
- https://cdn.shopify.com/s/files/1/0429/8476/7641/files/44730639835.pdf
- https://cdn.shopify.com/s/files/1/0441/1867/1512/files/transport_stream_to_mp4.pdf
- https://cdn.shopify.com/s/files/1/0430/7720/6165/files/3769471546.pdf
- https://cdn.shopify.com/s/files/1/0428/3600/0931/files/42993503510.pdf
- https://cdn.shopify.com/s/files/1/0428/1214/5830/files/72820444811.pdf
- https://cdn.shopify.com/s/files/1/0432/0365/7887/files/account_hacker_v3_9._9_activation_code.pdf
- https://cdn.shopify.com/s/files/1/0429/2352/4259/files/54264330817.pdf
- https://cdn.shopify.com/s/files/1/0429/5147/5351/files/luwodesisufi.pdf
- https://cdn.shopify.com/s/files/1/0437/9744/6816/files/21100158710.pdf
- https://cdn.shopify.com/s/files/1/0433/6081/3208/files/65200441722.pdf
- https://cdn.shopify.com/s/files/1/0428/5415/4406/files/zunugulupedunaruw.pdf
- https://cdn.shopify.com/s/files/1/0431/1403/7397/files/fubutajudewonetasin.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_off000066cc.bin7cdacfafc71feb3b646dcd0edc8503e436e0f52e79547200bbcb82426277ad64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66CC | 5464 bytes |
font_01_sfnt_off00007944.bin38a1b78d46e5833e5d77649c7b2e073544584e4eeede4f70c4de8eda3b3c0322 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7944 | 9932 bytes |
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