MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as an 'Erasmus internship evaluation report'. This link, https://ttraff.ru/pify?keyword=erasmus+internship+evaluation+report, is designed to lead the user to further malicious content. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is a phishing or redirection lure.
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=erasmus+internship+evaluation+report
- http://files.tplsongwriting.org/uploads/1/3/1/4/131406507/6463ae97545e3c8.pdf
- http://files.waldencoffeehouse.com/uploads/1/3/0/8/130874520/xobosafa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32732230761.pdf
- https://cdn.shopify.com/s/files/1/0428/9200/1433/files/vowilob.pdf
- https://cdn.shopify.com/s/files/1/0432/6054/3138/files/mewonipatemetukitefonawev.pdf
- https://cdn.shopify.com/s/files/1/0429/5458/8316/files/66876814961.pdf
- https://cdn.shopify.com/s/files/1/0427/4916/5734/files/58301039255.pdf
- https://cdn.shopify.com/s/files/1/0430/7465/0261/files/18_wheels_of_steel_haulin_mod.pdf
- https://cdn.shopify.com/s/files/1/0433/9925/0081/files/gmat_data_sufficiency_practice_test.pdf
- https://cdn.shopify.com/s/files/1/0436/9275/3049/files/r_kelly_slow_jam.pdf
- https://cdn.shopify.com/s/files/1/0430/6888/3106/files/xigoxule.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_off00007123.bin2eeb1e2736071b37cfc80452cd21a612280092b9cfc81f0be4433ed3f19e9558 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7123 | 5076 bytes |
font_01_sfnt_off0000823f.binf33e3a9a3766311d304cff3cc298e55949c44ede8a359dcedfccf68d909325f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x823F | 10180 bytes |
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