MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a lure related to an IRS enrolled agent exam study guide, and it embeds a significant number of external links. One of these links, https://ttraff.ru/pify?keyword=irs+enrolled+agent+exam+study+guide, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document appears to be a link farm, likely designed to distribute malicious content or manipulate search engine results.
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=irs+enrolled+agent+exam+study+guide
- http://pisorutat.familyrootschiro.com/uploads/1/3/1/8/131856124/9246cb642b2f.pdf
- http://pavelibag.mrwhatley.com/uploads/1/3/1/0/131070197/22b20ddb207f16.pdf
- http://files.mylifebuilder.org/uploads/1/3/0/9/130969176/sudusak.pdf
- https://cdn.shopify.com/s/files/1/0432/2885/6487/files/mixexeverebajadexusifi.pdf
- https://cdn.shopify.com/s/files/1/0432/5713/5257/files/xibuxepilubipowegokudabo.pdf
- https://cdn.shopify.com/s/files/1/0447/6744/5141/files/nelex.pdf
- https://cdn.shopify.com/s/files/1/0434/1514/2551/files/which_event_occurred_first.pdf
- https://cdn.shopify.com/s/files/1/0433/0396/0731/files/squeeze_theorem_calculus.pdf
- https://cdn.shopify.com/s/files/1/0437/0015/8629/files/convex_lens_ray_diagram.pdf
- https://cdn.shopify.com/s/files/1/0438/3178/7670/files/kidasat.pdf
- https://cdn.shopify.com/s/files/1/0428/3616/4774/files/mkv_hindi_movies.pdf
- https://cdn.shopify.com/s/files/1/0432/8334/9668/files/toeic_answer_sheet_free.pdf
- https://cdn.shopify.com/s/files/1/0431/0925/3286/files/62549877054.pdf
- https://cdn.shopify.com/s/files/1/0431/0728/7206/files/topuxipukizaliluraw.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_off00008deb.bin0634faa9a6cbb0847faa65e488ed6613566a85a36f56cb52a5f757c633b07572 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DEB | 5252 bytes |
font_01_sfnt_off00009fb7.binb9204d96cecbb85c5697c63176dae0df313cb2c0456fda06ace080a05c514950 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9FB7 | 10344 bytes |
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