MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a link farm with numerous external PDF links, suggesting an attempt to manipulate search engine results or distribute content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=activity+lifecycle+android+tutorial, which is likely used for phishing or malware delivery. The ML classifier strongly supports the malicious verdict.
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=activity+lifecycle+android+tutorial
- http://files.vibrant-energies.com/uploads/1/3/0/7/130775980/pawanetamonuvisera.pdf
- http://jubafe.mdvcorp.com/uploads/1/3/1/3/131383309/junisano_sopebezolejumik_wupex.pdf
- http://jomaxob.shopmmarie.com/uploads/1/3/0/7/130776433/3dcf5eddcd2050.pdf
- http://files.proyectocubabat.com/uploads/1/3/0/8/130813953/9604443.pdf
- https://cdn.shopify.com/s/files/1/0437/9102/4280/files/93391345267.pdf
- https://cdn.shopify.com/s/files/1/0432/1617/5263/files/material_ui_react_native_template.pdf
- https://cdn.shopify.com/s/files/1/0432/3550/8387/files/os_buddenbrooks_portugues.pdf
- https://cdn.shopify.com/s/files/1/0447/9628/0983/files/astounding_science_fiction_october_1953.pdf
- https://cdn.shopify.com/s/files/1/0445/3777/4239/files/bardo_thodol_descargar.pdf
- https://cdn.shopify.com/s/files/1/0433/3928/4645/files/webedudenopum.pdf
- https://cdn.shopify.com/s/files/1/0431/1059/6765/files/reliability_centered_maintenance_john_moubray_2nd_edition.pdf
- https://cdn.shopify.com/s/files/1/0430/8670/8893/files/cactus_club_cafe_menu.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_off00005d91.bin705ff528ddfca31ccdd61c8d687b17cf13786c726336120da53b821562c10b43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D91 | 4988 bytes |
font_01_sfnt_off00006e9b.bine7370dc86438932485d5ee96bdeecefbf629809c998ec6bd00090c42d7ef9470 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E9B | 10608 bytes |
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