MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=ascent+day+1+sheet+music+pdf'. It also exhibits characteristics of a PDF SEO link farm, with numerous embedded links, many of which are to benign Shopify URLs but at least one points to a potentially malicious redirector. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be tricking users into clicking a malicious link disguised as a document.
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=ascent+day+1+sheet+music+pdf
- http://files.endoftenancyservice.com/uploads/1/3/2/7/132740586/jobozimamifobof.pdf
- http://gilira.lostsalon.com/uploads/1/3/1/3/131384600/sunaf-sevixigimerodim-riper.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/8784/5790/files/fomijexadavowi.pdf
- https://cdn.shopify.com/s/files/1/0438/1537/0912/files/gekoludesuvapo.pdf
- https://cdn.shopify.com/s/files/1/0432/2256/5032/files/passive_verbs_exercises.pdf
- https://cdn.shopify.com/s/files/1/0441/2263/6440/files/designs_and_construction_detail_of_mono_pitch_roofs.pdf
- https://cdn.shopify.com/s/files/1/0428/9105/1161/files/1640714619.pdf
- https://cdn.shopify.com/s/files/1/0439/4015/1464/files/great_depression_causes_and_effects.pdf
- https://cdn.shopify.com/s/files/1/0429/6186/2810/files/96551198871.pdf
- https://cdn.shopify.com/s/files/1/0430/7910/6724/files/94422577433.pdf
- https://cdn.shopify.com/s/files/1/0435/8068/6495/files/chinua_achebe_short_stories.pdf
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/dakawusege.pdf
- https://cdn.shopify.com/s/files/1/0432/7417/4622/files/37984892343.pdf
- https://cdn.shopify.com/s/files/1/0432/8544/6824/files/moredibaxi.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004b60.bin33449cb0d05665000f91845523c6438dacd05e16a1068c34513ae201260b9632 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B60 | 5412 bytes |
font_01_sfnt_off00005daa.bine4791c996a3befd6c7c7709cbbfceb1c1f772c4a6c2e8fd2d8be7c3f316d51e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DAA | 9676 bytes |
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