MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes the URL 'https://ttraff.ru/pify?keyword=hernia+hiatal+diagnostico+pdf', which is flagged as malicious. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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.
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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.
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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.
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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/pify?keyword=hernia+hiatal+diagnostico+pdf
- http://files.binge-writing.com/uploads/1/3/0/7/130776489/4d035ab6c7a409.pdf
- http://files.mustangsmend.org/uploads/1/3/0/9/130969942/jurugejawotomot-rewisolazutunu.pdf
- http://files.canadianwatertechnologies.com/uploads/1/3/0/8/130874109/vegojipo.pdf
- http://jekizukar.ancestorscouture.com/uploads/1/3/1/6/131637814/xovunanasu.pdf
- https://cdn.shopify.com/s/files/1/0431/6200/9755/files/lufipe.pdf
- https://cdn.shopify.com/s/files/1/0431/8471/7979/files/fubesadol.pdf
- https://cdn.shopify.com/s/files/1/0431/4988/5606/files/joripukude.pdf
- https://cdn.shopify.com/s/files/1/0433/7011/9318/files/calisthenics_unity_program.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuvitew.pdf
- https://cdn.shopify.com/s/files/1/0435/9805/3539/files/os_carbonarios.pdf
- https://cdn.shopify.com/s/files/1/0429/6559/8364/files/ashokan_farewell_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0440/2338/2166/files/28907276821.pdf
- https://cdn.shopify.com/s/files/1/0435/6617/0271/files/60761408462.pdf
- https://cdn.shopify.com/s/files/1/0427/6197/8023/files/buvodopozuko.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fuwakuda.pdf
- https://cdn.shopify.com/s/files/1/0433/9725/1235/files/xajifamoketenebenepak.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_off000071a3.bin3ce15162303d14006cf8cd8be70524e4d6dcbf8f27dc4b00d3fc0e1d53bd85c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71A3 | 5380 bytes |
font_01_sfnt_off000083de.binab9a6ec8f3fe81568be3188e2c97b904e342e43ed72cfd9d560f35d69b143a81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83DE | 9916 bytes |
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