MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are to PDF files hosted on platforms like Shopify and custom domains. The primary malicious URL identified is https://ttraff.com/pify?keyword=counting+stars+piano+sheet+music+for+beginners, which is likely used to redirect users to malicious content. The document body itself is heavily obfuscated but contains references to the same URLs.
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=counting+stars+piano+sheet+music+for+beginners
- http://files.pghdawgs.com/uploads/1/3/1/8/131856290/gaforof_belixipi.pdf
- http://files.whispersboutique.com/uploads/1/3/1/4/131438071/a847b8adbf6626.pdf
- https://cdn.shopify.com/s/files/1/0430/3768/7962/files/84461241233.pdf
- https://cdn.shopify.com/s/files/1/0433/8896/0933/files/tipos_de_auditoria_administrativa.pdf
- https://cdn.shopify.com/s/files/1/0439/4886/7739/files/free_schedule_template_daily.pdf
- https://cdn.shopify.com/s/files/1/0432/8400/5032/files/8241158019.pdf
- https://cdn.shopify.com/s/files/1/0438/2962/4992/files/pezemajakas.pdf
- https://cdn.shopify.com/s/files/1/0431/5421/0980/files/interferometric_waveguide_sensor.pdf
- https://cdn.shopify.com/s/files/1/0431/3156/8290/files/top_games_like_minecraft_for_android.pdf
- https://cdn.shopify.com/s/files/1/0431/7921/2960/files/notul.pdf
- https://cdn.shopify.com/s/files/1/0428/0261/0335/files/91597741009.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_off00004c14.binb42066dd8e323516f739234fe525540dd84e2d6bc4bf623606e17e3b086a7d30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C14 | 5440 bytes |
font_01_sfnt_off00005e72.bin397584b895098245e147667619ccc52d0651521959a13802ee95abd933389d2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E72 | 13252 bytes |
font_02_sfnt_off0000859d.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x859D | 4324 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.