MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the malicious URL and other benign-looking URLs, suggesting a lure to disguise the malicious intent. The primary attack pattern involves redirecting the user to a potentially 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/wb?keyword=theoretical%20inorganic%20chemistry%20day%20selbin%20pdf
- http://files.regulatorycounsel.net/uploads/1/3/1/3/131381677/9523946.pdf
- https://cdn.shopify.com/s/files/1/0432/0965/4436/files/samsung_ssd_magician.pdf
- https://cdn.shopify.com/s/files/1/0439/7416/4638/files/34635675371.pdf
- https://cdn.shopify.com/s/files/1/0432/4645/2899/files/sbi_atm_card_damaged_application_form.pdf
- https://cdn.shopify.com/s/files/1/0435/0086/3643/files/food_safety_manager_certification_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0429/5540/7511/files/xejudufitisufedepume.pdf
- https://cdn.shopify.com/s/files/1/0431/7003/7924/files/cts_verbal_ability_questions_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0428/7338/9223/files/fevur.pdf
- https://cdn.shopify.com/s/files/1/0435/5080/2081/files/towonuretelinelukemuxirok.pdf
- https://cdn.shopify.com/s/files/1/0436/4081/5774/files/57960683704.pdf
- https://cdn.shopify.com/s/files/1/0435/7623/0051/files/bahishti_zewar_in_urdu_free_download.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xigazisamakolomomabixefox.pdf
- https://cdn.shopify.com/s/files/1/0428/2348/3548/files/63972849759.pdf
- https://cdn.shopify.com/s/files/1/0428/9606/4671/files/xilazurofitefepirix.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_off000062b2.bin9751fd0e9e2ce795c02a16229e6db97fb1588808b72edd9166f89a3db0185fb5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62B2 | 5760 bytes |
font_01_sfnt_off00007618.binae91e1390d933939af2d12a5d5d36cd24a8691d9d9f6341278976f5a9476a729 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7618 | 10192 bytes |
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