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. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=causes+of+cardiac+arrhythmia+pdf'. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of links and the presence of a malicious redirector suggest an attempt to lure users to harmful content or manipulate search engine results.
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.com/pify?keyword=causes+of+cardiac+arrhythmia+pdf
- http://jozaro.mrfrausto.com/uploads/1/3/0/7/130775320/defum.pdf
- http://bamob.innerstateproductions.com/uploads/1/3/1/1/131164239/8832726.pdf
- http://files.electricreclab.com/uploads/1/3/1/4/131453990/lovab.pdf
- http://files.anchoragebestcleaningservice.com/uploads/1/3/0/8/130813696/rekutez_xetunidetelu_tidadipajomoful.pdf
- https://cdn.shopify.com/s/files/1/0439/4532/8808/files/wisokapija.pdf
- https://cdn.shopify.com/s/files/1/0432/3459/0875/files/51536197225.pdf
- https://cdn.shopify.com/s/files/1/0431/6830/1212/files/emojis_made_with_lines.pdf
- https://cdn.shopify.com/s/files/1/0428/2020/6758/files/jisosumumubazegine.pdf
- https://cdn.shopify.com/s/files/1/0430/5331/8298/files/91086653942.pdf
- https://cdn.shopify.com/s/files/1/0429/9345/1159/files/mesepoxu.pdf
- https://cdn.shopify.com/s/files/1/0436/0667/1517/files/58773019530.pdf
- https://cdn.shopify.com/s/files/1/0427/4572/5094/files/55829923255.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kulabegidubonigupux.pdf
- https://cdn.shopify.com/s/files/1/0432/4392/9757/files/phaser_3_examples.pdf
- https://cdn.shopify.com/s/files/1/0429/6019/1641/files/93650523975.pdf
- https://cdn.shopify.com/s/files/1/0433/9027/1642/files/39321233440.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_off0000a6f6.bin9b614ec23dad0323e225ba0b109ec0b80f1ac55af60c8ce34c08891423f9326c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA6F6 | 5368 bytes |
font_01_sfnt_off0000b915.bin6daf10821ee882c6bd6948c53b1c4d432b432ea97f930fe60b4ba5a555f6ac1c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB915 | 10676 bytes |
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