MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to 'ctet question paper 2011' and the malicious URL 'https://ttraff.ru/pify?keyword=ctet+question+paper+2011', suggesting a lure for educational content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful sites.
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=ctet+question+paper+2011
- http://zajiwo.capturedbyecp.com/uploads/1/3/1/4/131437508/4570793.pdf
- http://files.quilteddesires.com/uploads/1/3/1/3/131381612/zagopilot_vokatogidon.pdf
- https://cdn.shopify.com/s/files/1/0438/7936/6811/files/92087750890.pdf
- https://cdn.shopify.com/s/files/1/0429/7195/5351/files/vukurorowunezu.pdf
- https://cdn.shopify.com/s/files/1/0431/5188/4445/files/cengage_physical_chemistry_class_11.pdf
- https://cdn.shopify.com/s/files/1/0430/0845/8905/files/lirefa.pdf
- https://cdn.shopify.com/s/files/1/0433/0110/9920/files/14757018593.pdf
- https://cdn.shopify.com/s/files/1/0434/7035/6632/files/beginner_reading_comprehension.pdf
- https://cdn.shopify.com/s/files/1/0433/3400/8987/files/whatsapp_plus_apk_ultima_version_2018.pdf
- https://cdn.shopify.com/s/files/1/0437/5710/9402/files/library_classification_and_cataloguing.pdf
- https://cdn.shopify.com/s/files/1/0436/2859/3315/files/52368676522.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_off000067ee.bin0cb7c2f62695dbf60dfa76330f7a152b258bde9edada51a588f853b1ab10d163 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67EE | 5136 bytes |
font_01_sfnt_off0000796c.bin66d8173d7c8e6b985064e1eeb44eceb810a6597f153a65486907869bffc99335 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x796C | 10576 bytes |
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