MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous external links, one of which is to a suspicious domain. The document body contains text related to 'Baidu app for android' and the authoring application, suggesting a potential lure.
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=baidu+app+for+android
- http://rumun.privatecounsellingandmediation.com/uploads/1/3/0/7/130775565/6f575.pdf
- https://cdn.shopify.com/s/files/1/0428/2833/3212/files/82386767658.pdf
- https://cdn.shopify.com/s/files/1/0434/2838/0839/files/genetically_modified_organisms_gmos.pdf
- https://cdn.shopify.com/s/files/1/0435/1993/4628/files/building_facade_design.pdf
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/lopiduvosorijuxolozizum.pdf
- https://cdn.shopify.com/s/files/1/0433/8620/8406/files/ragowagasulexedave.pdf
- https://cdn.shopify.com/s/files/1/0435/3225/5392/files/7435813368.pdf
- https://cdn.shopify.com/s/files/1/0434/1301/2630/files/sojagopabarelejujida.pdf
- https://cdn.shopify.com/s/files/1/0440/7053/5318/files/witudetalotevovukivowid.pdf
- https://cdn.shopify.com/s/files/1/0431/9982/4032/files/xemebipokuziwoluligovuvab.pdf
- https://cdn.shopify.com/s/files/1/0432/7351/9269/files/635577497.pdf
- https://cdn.shopify.com/s/files/1/0441/2653/5832/files/song_hallelujah_by_funbi.pdf
- https://cdn.shopify.com/s/files/1/0435/2973/2245/files/human_anatomy_4th_edition_mckinley.pdf
- https://cdn.shopify.com/s/files/1/0433/3089/6026/files/43325130570.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_off00006ea8.bin0e073bbcad87334d0afdce8193e899e7417bb8625002a909191465bde388429f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EA8 | 4872 bytes |
font_01_sfnt_off00007f48.bin64953018d05c2ef16ae292463354c1d52417fec536c1b0cc57c25857f4193b40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F48 | 10244 bytes |
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