MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body, though partially corrupted, includes the same URL and a seemingly academic title, suggesting a lure. The ML classifier also strongly flagged this PDF as malicious. The primary IOC is the malicious 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/pify?keyword=quantitative+research+about+tardiness+of+students+pdf
- http://files.shyradesouza.com/uploads/1/3/2/7/132740670/pijirumuzutugo.pdf
- http://toronos.jaspercountycommunityservices.com/uploads/1/3/1/3/131381679/f69f09d1b.pdf
- http://gariganij.antoinetteducheinlagrone.com/uploads/1/3/0/7/130775388/8417901.pdf
- https://cdn.shopify.com/s/files/1/0465/1882/9206/files/kobuvumusafireliwetumafas.pdf
- https://cdn.shopify.com/s/files/1/0431/9117/3278/files/54816117789.pdf
- https://cdn.shopify.com/s/files/1/0431/8471/7979/files/44825663611.pdf
- https://cdn.shopify.com/s/files/1/0438/8637/9160/files/64673708042.pdf
- https://cdn.shopify.com/s/files/1/0429/4282/4611/files/vunewosanotakogivaw.pdf
- https://cdn.shopify.com/s/files/1/0433/1605/2123/files/69875203488.pdf
- https://cdn.shopify.com/s/files/1/0430/7910/6724/files/bepopasuxidude.pdf
- https://cdn.shopify.com/s/files/1/0429/5403/1270/files/85837461887.pdf
- https://cdn.shopify.com/s/files/1/0435/5640/5411/files/87288386997.pdf
- https://cdn.shopify.com/s/files/1/0436/8164/4697/files/reflected_in_you_free.pdf
- https://cdn.shopify.com/s/files/1/0437/6159/8616/files/phoenix_chat_lines.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007ab5.binbc67fdddb115990de5983615c6f243e26dd1f4d3cd12c8dc2a5fb1bbba17f91d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AB5 | 5352 bytes |
font_01_sfnt_off00008cd7.bin2815f7d4c167afc3f15adf91b47f6b1405d41caae0c17de013e90a4b1a51f165 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CD7 | 9904 bytes |
font_02_sfnt_off0000aeaa.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEAA | 4324 bytes |
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