MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a URL designed to impersonate a Synology NAS reset notification. The document body, though heavily obfuscated, contains the target URL and references to a system reset. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm used for SEO poisoning or to obscure the ultimate destination. The ML classifier strongly supports the malicious nature of this PDF.
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.cc/pify?keyword=reset+synology+nas
- http://files.number1hair.co.uk/uploads/1/3/2/7/132740352/duwesemi.pdf
- http://files.living-towin.com/uploads/1/3/0/7/130776828/tibori-xulipubu.pdf
- http://files.empowerptandwellness.com/uploads/1/3/2/3/132302716/5917608.pdf
- http://files.carriecharleybrown.com/uploads/1/3/0/8/130815437/8f1299c559095f.pdf
- http://files.talknerdy.uk/uploads/1/3/1/4/131455722/woruzotiso_nalivujile_fidepinu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdf
- https://cdn.shopify.com/s/files/1/0431/1898/5370/files/51999497286.pdf
- https://cdn.shopify.com/s/files/1/0437/2099/9064/files/5453853552.pdf
- https://cdn.shopify.com/s/files/1/0430/7327/4018/files/lojezirepusenunafimojibo.pdf
- https://cdn.shopify.com/s/files/1/0428/4622/4551/files/zokuwutor.pdf
- https://cdn.shopify.com/s/files/1/0432/9802/9733/files/41089033391.pdf
- https://cdn.shopify.com/s/files/1/0436/1594/4867/files/vizemur.pdf
- https://cdn.shopify.com/s/files/1/0432/6775/2099/files/31501873145.pdf
- https://cdn.shopify.com/s/files/1/0432/4930/3720/files/vekoju.pdf
- https://cdn.shopify.com/s/files/1/0440/7951/3752/files/bujasizo.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_off00006020.bin2858e662fceff9c9e1a12ff7c33c2e284143bde58a889082a732895f6729cdfe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6020 | 4864 bytes |
font_01_sfnt_off000070d2.bincf596b3e4d2ffceed6ec9fd6d216a27202d055976a3a83648d9234b4819c4853 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70D2 | 10028 bytes |
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