MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.com/wix?keyword=ligamento+de+mackenrodt', which is flagged as malicious. Additionally, the file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, suggesting an attempt to manipulate search engine results or distribute content through a compromised infrastructure. 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/wix?keyword=ligamento+de+mackenrodt
- https://static.usrfiles.com/ugd/590778_47d863c86c31419e894de3c857f85fc6.pdf
- https://static.usrfiles.com/ugd/e4a001_41ff245af1ae41539c3018db2f21d2dd.pdf
- https://static.usrfiles.com/ugd/b8c837_ea766fa082de4f4b8f9cab86dc92a606.pdf
- https://static.usrfiles.com/ugd/b8c837_54acd1b4359e40bab030e4b644c34145.pdf
- https://static.usrfiles.com/ugd/756799_a6c67ff2f5f147d8a54e3304c7a0d330.pdf
- https://static.usrfiles.com/ugd/f09a9d_317d8c05ad674b38a563622da88b116a.pdf
- https://cdn.shopify.com/s/files/1/0433/4498/6280/files/algebra_1_regents_test.pdf
- https://cdn.shopify.com/s/files/1/0428/2518/7491/files/chisel_sharpening_guide.pdf
- https://cdn.shopify.com/s/files/1/0434/1320/9246/files/11218040595.pdf
- https://static.usrfiles.com/ugd/15d534_d06a4e903ef84b78b8eeaa4e712c17d6.pdf
- https://static.usrfiles.com/ugd/b8c837_05380624090343b5bca55777ce2fa750.pdf
- https://static.usrfiles.com/ugd/b8c837_da91eb6cea424e249b9b5cf871653045.pdf
- https://static.usrfiles.com/ugd/87d215_aaf0640c24e040e4a79b41f7ae225401.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_off0000cf44.bin305eac805823e87e9d7957cfcfe6e910d0133c39487bfea4c16e341fe9e8cb7e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF44 | 5052 bytes |
font_01_sfnt_off0000e069.binb1d07dec89e2b86cb95d1606df413deca571b28ed45b75c94a1012e2e2b34298 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE069 | 10504 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.