MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF 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 embedded URLs pointing to external resources. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=marketing+environment+pdf+book'. The document body, though heavily obfuscated, contains references to the same URL, reinforcing its role in the attack.
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=marketing+environment+pdf+book
- http://files.olneyhelp.org/uploads/1/3/0/7/130776183/a48441c19.pdf
- http://liwunota.sarah-bass.com/uploads/1/3/0/7/130776485/5350602.pdf
- http://files.bsg-cbrne.us/uploads/1/3/2/7/132741476/5252175.pdf
- https://cdn.shopify.com/s/files/1/0432/6971/8182/files/shoulder_impingement_treatment_exercises.pdf
- https://cdn.shopify.com/s/files/1/0437/9358/0189/files/15683879860.pdf
- https://cdn.shopify.com/s/files/1/0440/1725/4558/files/69968441293.pdf
- https://cdn.shopify.com/s/files/1/0430/7641/9744/files/femiterilukozigu.pdf
- https://cdn.shopify.com/s/files/1/0440/5490/4997/files/52106446164.pdf
- https://cdn.shopify.com/s/files/1/0438/2749/5074/files/gebubavu.pdf
- https://cdn.shopify.com/s/files/1/0431/3278/0701/files/guridovezifud.pdf
- https://cdn.shopify.com/s/files/1/0430/1602/8309/files/legafuzijelenunitipudab.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6317908028.pdf
- https://cdn.shopify.com/s/files/1/0428/3216/7068/files/91145292391.pdf
- https://cdn.shopify.com/s/files/1/0439/0898/9096/files/pibodav.pdf
- https://cdn.shopify.com/s/files/1/0438/3290/1789/files/autocad_civil_3d_road_design_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0432/8236/6629/files/61690254324.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_off0000827a.bin99e234eb6a3a5ce0e621fe77a8c301e79c85126d28decd6957dd89b61e2577b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x827A | 5420 bytes |
font_01_sfnt_off000094e4.binc0bf975b7d6aa4aed4e64cb9f0114cb91bb0e10ede453aa89dd80ea0df811302 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x94E4 | 10144 bytes |
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