MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=velvet+sky+instagram'. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs.
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=velvet+sky+instagram
- http://files.vipagroup.org/uploads/1/3/0/7/130775712/waboresogegopix.pdf
- http://files.ilovehomecleanhome.com/uploads/1/3/0/8/130813997/9077425.pdf
- http://files.dinkidimainecoons.net/uploads/1/3/0/7/130740442/7077561.pdf
- https://cdn.shopify.com/s/files/1/0429/0537/0791/files/xorobifafevonowofalu.pdf
- https://cdn.shopify.com/s/files/1/0431/6269/7894/files/vijarajazunip.pdf
- https://cdn.shopify.com/s/files/1/0432/0844/2020/files/95976462380.pdf
- https://cdn.shopify.com/s/files/1/0430/7409/3217/files/muvigarexuw.pdf
- https://cdn.shopify.com/s/files/1/0434/8290/6789/files/2586113524.pdf
- https://cdn.shopify.com/s/files/1/0430/4669/9165/files/wozotiduravatalawavero.pdf
- https://cdn.shopify.com/s/files/1/0439/1688/6184/files/kugokege.pdf
- https://cdn.shopify.com/s/files/1/0431/8406/2622/files/73498971129.pdf
- https://cdn.shopify.com/s/files/1/0432/3845/7504/files/26927808464.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_off0000e85f.binc6acebe3750ab55c09714fa1b34f6c70ddae3ce202e1a088ffcbc34adab53285 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE85F | 6588 bytes |
font_01_sfnt_off0000f8d9.binf1fc5bf8006a7f463e0667e0ccc34694dd71fe6995ba27e90671f5a9788e2c6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D9 | 5196 bytes |
font_02_sfnt_off00010a85.bin905f2126c91440d0f7f7665f01fc98795ac4901389fab691f2d718640b67ad3d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A85 | 10684 bytes |
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