MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=usu+comd+3400+final+exam'. Additionally, it exhibits a PDF link farm heuristic, with many embedded URLs, including one to 'http://vezegu.brucedouglasreevesauthor.com/uploads/1/3/2/6/132683014/6299200.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body, though partially garbled, contains text related to an exam and the redirector URL, suggesting a 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.cc/pify?keyword=usu+comd+3400+final+exam
- http://vezegu.brucedouglasreevesauthor.com/uploads/1/3/2/6/132683014/6299200.pdf
- https://cdn.shopify.com/s/files/1/0430/7940/1632/files/59839557586.pdf
- https://cdn.shopify.com/s/files/1/0448/4985/6669/files/study_bible_kjv.pdf
- https://cdn.shopify.com/s/files/1/0441/2624/0920/files/gokadilemobifumafoboza.pdf
- https://cdn.shopify.com/s/files/1/0431/7066/0508/files/afinal_o_que__business_intelligence_claudio_bonel_download.pdf
- https://cdn.shopify.com/s/files/1/0430/2916/8282/files/38157719399.pdf
- https://cdn.shopify.com/s/files/1/0433/5144/1560/files/befabivopunulevibakibav.pdf
- https://cdn.shopify.com/s/files/1/0434/5652/8541/files/26887318932.pdf
- https://cdn.shopify.com/s/files/1/0433/5144/1560/files/13138812829.pdf
- https://cdn.shopify.com/s/files/1/0434/2064/7576/files/23523347508.pdf
- https://cdn.shopify.com/s/files/1/0437/0595/8553/files/arlequin_servidor_de_dos_amos.pdf
- https://cdn.shopify.com/s/files/1/0433/9941/3910/files/cardiac_surgery_complications.pdf
- https://cdn.shopify.com/s/files/1/0439/0685/9176/files/kuwem.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_off0000510a.bine64aec9ad5ad2f2db26432427c7ff5d89c973dd9f1ee4081a9b7fb64bfe69fa2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x510A | 5324 bytes |
font_01_sfnt_off00006314.bina78630fb029073e7be897539ff8001ffd65279264fe258cf63f83fdc848066a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6314 | 10212 bytes |
font_02_sfnt_off000085af.bince7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85AF | 4324 bytes |
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