MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with many links pointing to potentially malicious redirectors. The primary malicious URL identified is https://ttraff.cc/pify?keyword=english+answers+to+how+are+you, which is flagged as a known malicious redirector. The document body, though partially corrupted, contains this URL and appears to be a lure to engage the user with a question. The ML classifier strongly indicated maliciousness, supporting the presence of these malicious links.
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.cc/pify?keyword=english+answers+to+how+are+you
- http://files.plainseagle.com/uploads/1/3/2/7/132740586/9211513.pdf
- http://files.equinemassageschool.com/uploads/1/3/0/7/130775411/kukivotib.pdf
- http://files.tiffanywitownhall.com/uploads/1/3/1/1/131163833/vitexox_xukozeperapu_norow.pdf
- http://files.ayatechnologies.net/uploads/1/3/0/7/130776406/cd7a1a.pdf
- http://jaten.jodiemarvincreations.com/uploads/1/3/2/6/132683014/totibugitak-kutebasog.pdf
- https://cdn.shopify.com/s/files/1/0432/9088/6312/files/citation_apa_format_online.pdf
- https://cdn.shopify.com/s/files/1/0430/0134/8255/files/lagisefevabanagibalawaven.pdf
- https://cdn.shopify.com/s/files/1/0434/2287/5813/files/cathy_o_brien_transformation_of_america.pdf
- https://cdn.shopify.com/s/files/1/0433/5340/7646/files/autodesk_sketchbook_unlocked_apk.pdf
- https://cdn.shopify.com/s/files/1/0434/3991/5164/files/totijatixabu.pdf
- https://cdn.shopify.com/s/files/1/0449/6248/0296/files/63668785683.pdf
- https://cdn.shopify.com/s/files/1/0432/5041/7827/files/moziper.pdf
- https://cdn.shopify.com/s/files/1/0430/2965/9805/files/92552519556.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_off00005cb4.bind4ac7c6ae366c96ad4420bb0e061f8dcc7cbee8ab44762277b5c80b961b7dced |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CB4 | 5100 bytes |
font_01_sfnt_off00006e1b.binaec0e99e90b9ea5283b83ffbe3c11451f86d58378d6774f8b523dd0a1bc4a7a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E1B | 9940 bytes |
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