MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same URL and a title suggesting an exercise sheet, a common lure. The presence of numerous other links to static.usrfiles.com, while individually benign, contributes to a link farm pattern. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
-
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.
-
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.
-
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.
-
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.com/pify?keyword=ellipse+drawing+exercise+sheet
- https://static.usrfiles.com/ugd/b8c837_3818fe0eb3334579ad71dfd449b18d41.pdf
- https://static.usrfiles.com/ugd/f967ac_78c8e54a48a34ec79e688e1654ec1856.pdf
- https://static.usrfiles.com/ugd/b7306e_329837c2e3d848278fecbbfb1e3e2ee9.pdf
- https://static.usrfiles.com/ugd/79e0dc_2f3d7e6cbc7149be8bc4e880a40ca781.pdf
- https://static.usrfiles.com/ugd/45fd81_2166ae9dc83c4608b79647efb4fb3aed.pdf
- https://static.usrfiles.com/ugd/fd3290_1387a6a870564808bcfb5b1d7460a89e.pdf
- https://static.usrfiles.com/ugd/b8c837_f2b0b735e20c4f308f2f9922363ccce6.pdf
- https://cdn.shopify.com/s/files/1/0431/8684/7903/files/54491086897.pdf
- https://cdn.shopify.com/s/files/1/0434/9899/5864/files/shutter_movie_mp4.pdf
- https://cdn.shopify.com/s/files/1/0429/5049/2316/files/62571209386.pdf
- https://cdn.shopify.com/s/files/1/0430/7776/3226/files/gifapejese.pdf
- https://cdn.shopify.com/s/files/1/0432/3636/0351/files/belorolamizewixopowulo.pdf
- https://cdn.shopify.com/s/files/1/0432/7804/1244/files/nikon_d5100_for_dummies.pdf
- https://cdn.shopify.com/s/files/1/0436/0824/4381/files/strategic_management_book_mcgraw_hill.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_off00005e66.bin161e91f5f5cb1a3c01159ea2b73a28ead8d619b195ceb8e2957da2ed9c9a1a64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E66 | 5452 bytes |
font_01_sfnt_off00007100.bin83dc4c3e69212ebd118f778a2d3c60ce2be81755898e05ed04016fe5f9033817 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7100 | 10084 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.