MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The sample is a PDF document that contains a lure to install a browser update, a common social engineering tactic. It embeds multiple links, one of which points to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site for further exploitation or payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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=chrome+new+version++64+bit
- http://talizigot.aklkansas.com/uploads/1/3/1/4/131483334/zasovijimax.pdf
- http://files.onstagetheatricalproductions.com/uploads/1/3/2/7/132740870/9747311.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/5652/9565/files/69408561949.pdf
- https://cdn.shopify.com/s/files/1/0432/6447/5304/files/98896013761.pdf
- https://cdn.shopify.com/s/files/1/0440/4409/1557/files/printable_color_wheel_template.pdf
- https://cdn.shopify.com/s/files/1/0429/3433/7695/files/digital_marketing_strategy_template_2019.pdf
- https://cdn.shopify.com/s/files/1/0432/9222/9797/files/carson_dellosa_math_4_today_grade_3.pdf
- https://cdn.shopify.com/s/files/1/0434/4840/2081/files/82778020630.pdf
- https://cdn.shopify.com/s/files/1/0432/0460/8155/files/70790262276.pdf
- https://cdn.shopify.com/s/files/1/0436/1610/8707/files/cheryl_yung_gravy.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000621c.bina25a31facf699a4848231e01f204c9f02522a406ddbeba2559ce45f026b06145 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x621C | 5124 bytes |
font_01_sfnt_off00007384.bin980e316815762c2b758012adfa4153e39ae6729c3b89868b9d24626f26715291 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7384 | 10992 bytes |
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