MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Excel file in browser using java'. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. The ML classifier strongly flagged this PDF as malicious.
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=excel+file+in+browser+using+java
- http://files.mosaicnorthal.org/uploads/1/3/0/7/130776167/wawikamobuxevafaxuf.pdf
- http://files.bodybykat.com/uploads/1/3/1/4/131407406/41027881.pdf
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/48435474934.pdf
- https://cdn.shopify.com/s/files/1/0431/0617/3077/files/fitepidov.pdf
- https://cdn.shopify.com/s/files/1/0429/5376/9123/files/campbell_biology_in_focus_1st_edition_online.pdf
- https://cdn.shopify.com/s/files/1/0431/2937/2836/files/40138536745.pdf
- https://cdn.shopify.com/s/files/1/0431/6869/4432/files/tuzadavutawetezekazinaw.pdf
- https://cdn.shopify.com/s/files/1/0436/5985/3977/files/76981045096.pdf
- https://cdn.shopify.com/s/files/1/0432/5546/4104/files/63618413519.pdf
- https://cdn.shopify.com/s/files/1/0430/8451/3429/files/tewijuxavozogaxanub.pdf
- https://cdn.shopify.com/s/files/1/0429/9263/1962/files/xokajogotexakamikexowu.pdf
- https://cdn.shopify.com/s/files/1/0430/0469/0581/files/xadaxaletugifepi.pdf
- https://cdn.shopify.com/s/files/1/0431/4071/0566/files/24386458262.pdf
- https://cdn.shopify.com/s/files/1/0432/3901/4562/files/briggs_and_stratton_model_number.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_off00006525.binb5bbf3d7f601880e919360ded3cd7eb805b874dcf143c222bf1716deb0792a3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6525 | 5444 bytes |
font_01_sfnt_off000077cf.bin325d53e3b18e3853f82e943bcf84f6c512dc8df5673c242047f5f74bbb672242 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77CF | 16036 bytes |
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