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.cc, which is disguised as a lab report example. The ML classifier strongly indicated maliciousness, and the PDF was found to contain a large number of external links, many pointing to static.usrfiles.com, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the primary attack vector is the malicious link embedded within the document.
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.cc/wix?keyword=procedure+in+lab+report+example
- https://static.usrfiles.com/ugd/90c678_f64b197621614b45adbbfd6809d9eb32.pdf
- https://static.usrfiles.com/ugd/b8c837_e5e6233c05c8430a99a0aaa36d5cb547.pdf
- https://static.usrfiles.com/ugd/6c98bc_c34d13173d16460bb7f18ef2ef59912e.pdf
- https://cdn.shopify.com/s/files/1/0431/8894/5064/files/92968403903.pdf
- https://static.usrfiles.com/ugd/8b49c6_bf2827403fe845aaab8a67cf95747f60.pdf
- https://static.usrfiles.com/ugd/99965f_bf3b7154715c40e3bd13342c0d9a5433.pdf
- https://static.usrfiles.com/ugd/f46427_d8f6380db5d748c0932b7eed636c1127.pdf
- https://cdn.shopify.com/s/files/1/0436/4769/7061/files/r_h_factor_full_form.pdf
- https://cdn.shopify.com/s/files/1/0429/4764/1511/files/63176590025.pdf
- https://cdn.shopify.com/s/files/1/0431/4015/3511/files/crayons_clipart.pdf
- https://cdn.shopify.com/s/files/1/0431/0073/3596/files/bluetooth_mouse_for_android_smartphone.pdf
- https://cdn.shopify.com/s/files/1/0429/5560/4124/files/yeni_balayanlar_iin_python_rnekle.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_off00007104.binbc30542ea206990fe27e5b920b083b1e3adb0abefb060ac1b1486ee5259e1cd4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7104 | 5132 bytes |
font_01_sfnt_off00008252.bine9720d1a0733f46ab61face64be268939fa21e20b7d066adc970ddba7d860171 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8252 | 10492 bytes |
font_02_sfnt_off0000a614.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA614 | 4324 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.