MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is presented as a PDF download. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the URL that triggers the redirector, indicating a lure to a malicious site.
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=strength+of+materials+basic+formulas+pdf
- http://files.alisonpcampbell.com/uploads/1/3/0/7/130775304/weseso.pdf
- http://files.ajukmapparel4.com/uploads/1/3/1/3/131379205/2d6b9c57dcf896.pdf
- http://gipofawa.undralandskennel.com/uploads/1/3/0/9/130969204/vejanekegurexur.pdf
- https://cdn.shopify.com/s/files/1/0427/5660/4070/files/vojojajavizanobitu.pdf
- https://cdn.shopify.com/s/files/1/0437/7742/5565/files/bugoneludede.pdf
- https://cdn.shopify.com/s/files/1/0431/7279/0427/files/napa_filter_cross_reference.pdf
- https://cdn.shopify.com/s/files/1/0433/2044/3045/files/33531782118.pdf
- https://cdn.shopify.com/s/files/1/0427/4647/8758/files/99531696624.pdf
- https://cdn.shopify.com/s/files/1/0440/2121/9493/files/64550979192.pdf
- https://cdn.shopify.com/s/files/1/0440/6099/9830/files/31717735688.pdf
- https://cdn.shopify.com/s/files/1/0427/8432/5798/files/kakijadaseravuxalimodaxir.pdf
- https://cdn.shopify.com/s/files/1/0430/3824/5017/files/stokely_carmichael_what_we_want.pdf
- https://cdn.shopify.com/s/files/1/0437/9371/1261/files/kawizasivogefudojoxa.pdf
- https://cdn.shopify.com/s/files/1/0430/8995/2922/files/75559569249.pdf
- https://cdn.shopify.com/s/files/1/0432/6922/6656/files/appsc_group_1_syllabus_2020_download.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_off000074a5.bin6c662f4f56cacc20130acdca6006c69bc90210f5468b3384fae24809db3ebd82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74A5 | 5812 bytes |
font_01_sfnt_off0000883a.bine72327a2454038cfee944f2afad5816a61df22343303ed988b75697cac618ed1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x883A | 10224 bytes |
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