MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm designed to appear as legitimate PDF downloads, but the primary link redirects to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection. The document body, though heavily obfuscated, contains the initial lure text and the malicious URL, indicating a social engineering attempt to trick users into clicking the link. No scripts were extracted from this sample.
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=wastewater+treatment+plant+design+pdf+download
- http://files.easychordz.com/uploads/1/3/1/1/131163897/9530669.pdf
- http://files.literacycenterofharlingen.org/uploads/1/3/0/9/130968947/laxikexowaxet.pdf
- http://files.mmac.org/uploads/1/3/1/1/131164174/povaxiti-zuzovexasuwelaw.pdf
- http://files.mssciencefest.com/uploads/1/3/1/4/131407823/6374592.pdf
- http://files.brownhuntshorthairs.com/uploads/1/3/1/8/131856134/vazefabifajefitosas.pdf
- https://cdn.shopify.com/s/files/1/0437/4413/3281/files/36170969254.pdf
- https://cdn.shopify.com/s/files/1/0428/5802/1027/files/26390296427.pdf
- https://cdn.shopify.com/s/files/1/0434/5276/0224/files/vuxunavivusise.pdf
- https://cdn.shopify.com/s/files/1/0438/4748/3557/files/pylab_istft_function.pdf
- https://cdn.shopify.com/s/files/1/0438/6642/3456/files/tosare.pdf
- https://cdn.shopify.com/s/files/1/0435/9376/0931/files/beatles_in_my_life_chords.pdf
- https://cdn.shopify.com/s/files/1/0427/6033/9623/files/58374122197.pdf
- https://cdn.shopify.com/s/files/1/0429/6366/5062/files/59292716015.pdf
- https://cdn.shopify.com/s/files/1/0441/4147/8040/files/94382731064.pdf
- https://cdn.shopify.com/s/files/1/0433/1926/3397/files/visimuguze.pdf
- https://cdn.shopify.com/s/files/1/0437/6572/7384/files/84503047601.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_off00006a68.binf8f6c3292d7234e2acc68f8f565b2dec0441f1cb61e5ddf165a68e0c35ff4cb0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A68 | 5468 bytes |
font_01_sfnt_off00007d02.bin86ab366b931f3599637fe4c7d5b7109138224b32f93a0593d2f9cb9a1562bd7e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D02 | 10568 bytes |
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