MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by a machine learning classifier and contains multiple critical heuristic firings indicating malicious redirector links and a link farm. The document body, though heavily obfuscated, contains a URL that points to a redirector. The primary attack pattern involves luring users with seemingly legitimate academic content to click on numerous embedded links, which ultimately lead to malicious infrastructure.
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=walden+thoreau+pdf+free
- http://files.bvhscheer.org/uploads/1/3/1/4/131437919/a9dee943cc87f.pdf
- http://files.pe3323.com/uploads/1/3/0/9/130969146/lifobev_wawupora.pdf
- http://files.foreverflagpoles.com/uploads/1/3/1/1/131163846/pegarifa.pdf
- https://cdn.shopify.com/s/files/1/0431/2301/5841/files/photosynthesis_and_cellular_respiration_crossword.pdf
- https://cdn.shopify.com/s/files/1/0435/8003/1137/files/uv_visible_absorption_spectroscopy.pdf
- https://cdn.shopify.com/s/files/1/0438/5354/5632/files/23065070910.pdf
- https://cdn.shopify.com/s/files/1/0431/3769/5906/files/bar_manager_resume.pdf
- https://cdn.shopify.com/s/files/1/0427/9320/5916/files/37164974419.pdf
- https://cdn.shopify.com/s/files/1/0433/6159/9656/files/wuluke.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/botezosural.pdf
- https://cdn.shopify.com/s/files/1/0438/0937/4368/files/p90x_workout_guide.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.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_off00005398.bin55655ccffb89c3ee78c00958ebb01dfcdff364caee718272df1d11553d89535f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5398 | 4964 bytes |
font_01_sfnt_off00006480.bin5e3e66247f901a0ac96b73444963c5cb8a6351b473c9b5f9e18661c73ab5b6d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6480 | 10316 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.