MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors, as indicated by the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. One critical URL, https://ttraff.ru/wb?keyword=algebra%202%20complex%20numbers%20worksheets%20with%20answers, is flagged as malicious. The document body, though heavily obfuscated, contains references to educational content, suggesting a lure. 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.ru/wb?keyword=algebra%202%20complex%20numbers%20worksheets%20with%20answers
- http://xawimixi.cleanclutterfree.com/uploads/1/3/1/8/131871509/negipufivukedizafi.pdf
- http://sikup.sandavillas.com/uploads/1/3/1/4/131482962/vedawapuram-bujogaxi-risigudamewupo-nikopav.pdf
- https://cdn.shopify.com/s/files/1/0437/7909/6728/files/10384812507.pdf
- https://cdn.shopify.com/s/files/1/0435/0902/2886/files/refam.pdf
- https://cdn.shopify.com/s/files/1/0438/3339/3309/files/wewobipusexage.pdf
- https://cdn.shopify.com/s/files/1/0433/3341/9166/files/niti_aayog_aspirational_districts.pdf
- https://cdn.shopify.com/s/files/1/0434/7405/9430/files/wuvifexejimuwete.pdf
- https://cdn.shopify.com/s/files/1/0432/8580/7269/files/7149065412.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tevedizulav.pdf
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/download_terjemahan_kitab_bidayatul_mujtahid.pdf
- https://cdn.shopify.com/s/files/1/0437/0549/9803/files/54946655217.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_off000040d8.bincb26c11d1f4f16fbac5a938dce628601265ddbc1176642e14114a38441bc1869 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x40D8 | 5832 bytes |
font_01_sfnt_off0000549a.bincea7d03214918c0b3ee5d7242d3d36d71cd990c4825913786d80e43a666b2d59 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x549A | 8836 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.