MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=av+malformation+mri+findings', which is flagged as a malicious redirector. Additionally, a large list of PDF links, many hosted on shopify.com, were found, indicating a link farm strategy. The ML classifier strongly flagged this PDF as malicious.
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=av+malformation+mri+findings
- http://files.handsfreehectare.com/uploads/1/3/2/3/132303353/gesagu.pdf
- https://cdn.shopify.com/s/files/1/0434/0878/5562/files/shaak_ti_force_unleashed.pdf
- https://cdn.shopify.com/s/files/1/0436/3993/1033/files/roduvesojadimufejufol.pdf
- https://cdn.shopify.com/s/files/1/0437/2060/5850/files/caballo_de_troya_6_gratis.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85155057715.pdf
- https://cdn.shopify.com/s/files/1/0430/6993/1673/files/wowagejamo.pdf
- https://cdn.shopify.com/s/files/1/0433/8237/4561/files/62837688517.pdf
- https://cdn.shopify.com/s/files/1/0436/2256/4000/files/43075406538.pdf
- https://cdn.shopify.com/s/files/1/0428/0962/2695/files/6827886969.pdf
- https://cdn.shopify.com/s/files/1/0429/6353/3977/files/zisagupakulet.pdf
- https://cdn.shopify.com/s/files/1/0464/7279/0174/files/agriculture_census_2015-_16.pdf
- https://cdn.shopify.com/s/files/1/0435/2340/8032/files/wakutaturorap.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_off000066cd.binfef14d1b4c7de7a1d0d0b40187a379139ce604bdda30fc232cd331e299b96a1d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66CD | 5276 bytes |
font_01_sfnt_off000078a5.bineaf5fc8a0a1035a62756121653ea99d3bd6382fc8e4b2a0dfd84bde90ab3dffc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78A5 | 9988 bytes |
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