MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. Another critical heuristic identified a large number of external PDF links, suggesting SEO manipulation or a link farm. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL.
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=the%20purloined%20letter%20lacan%20pdf
- http://files.isuministries.org/uploads/1/3/2/6/132696274/pimab_nuvolu_sikunowazava.pdf
- http://files.roseworksconsulting.com/uploads/1/3/2/6/132681559/pibujifumo.pdf
- http://files.sunrise-umc.org/uploads/1/3/2/7/132740949/5597028.pdf
- https://cdn.shopify.com/s/files/1/0432/8695/4139/files/entrepreneurship_development_book_by_senthil_download.pdf
- https://cdn.shopify.com/s/files/1/0429/4544/6044/files/kedikoxuguv.pdf
- https://cdn.shopify.com/s/files/1/0437/5658/5111/files/vosezezinixetifiwaba.pdf
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/bionic_turtle_frm_study_material.pdf
- https://cdn.shopify.com/s/files/1/0437/4305/1937/files/70644200079.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.pdf
- https://cdn.shopify.com/s/files/1/0435/9464/5672/files/sweet_home_alabama_tab.pdf
- https://cdn.shopify.com/s/files/1/0429/6497/5765/files/fumemedexuxujosamekuwedaw.pdf
- https://cdn.shopify.com/s/files/1/0435/9441/6290/files/nationalist_movement_in_west_africa.pdf
- https://cdn.shopify.com/s/files/1/0428/8646/3647/files/52060865565.pdf
- https://cdn.shopify.com/s/files/1/0428/9619/5737/files/hallelujah_ukulele_tabs.pdf
- https://cdn.shopify.com/s/files/1/0438/2982/1597/files/statistical_data_collection.pdf
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/92389651315.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_off0000e0be.bin6fe52ffe8fc2299090640e1967891fd8a086b6f71f90c4875e97b39e8f92e832 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0BE | 5016 bytes |
font_01_sfnt_off0000f1c4.bin7487dd9a2422a736ded82904c63af70e77eb0fd64fac8947cc61ae5802882e87 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1C4 | 10856 bytes |
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