MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. One such redirector URL is https://ttraff.ru/pify?keyword=math+multiplication+worksheets+for+5th+graders. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector suggests an attempt to deliver a secondary payload or phish for credentials.
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=math+multiplication+worksheets+for+5th+graders
- http://files.globalinguae.com/uploads/1/3/1/4/131412235/xalefog.pdf
- http://files.otlbuildingcompany.com/uploads/1/3/2/6/132695582/5933331.pdf
- http://goxelit.kitsapcounselingservices.com/uploads/1/3/0/7/130738850/kozeme.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/6294/2101/files/annotate_apple_pen.pdf
- https://cdn.shopify.com/s/files/1/0427/6197/8023/files/putumaf.pdf
- https://cdn.shopify.com/s/files/1/0438/3758/7606/files/kakinagasobuboxonagiz.pdf
- https://cdn.shopify.com/s/files/1/0432/6454/0835/files/relamerebetezuken.pdf
- https://cdn.shopify.com/s/files/1/0437/7539/3944/files/tales_of_mystery_and_imagination.pdf
- https://cdn.shopify.com/s/files/1/0437/6199/1841/files/nipanesogebemopaxakuvo.pdf
- https://cdn.shopify.com/s/files/1/0434/0046/2503/files/vuwudoxisefe.pdf
- https://cdn.shopify.com/s/files/1/0434/5928/1048/files/susutolub.pdf
- https://cdn.shopify.com/s/files/1/0435/0600/8216/files/gawapogazisaxaz.pdf
- https://cdn.shopify.com/s/files/1/0431/2026/3322/files/lesifugonotujerurupur.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006574.bin5a5f69cca08bbaf1dbf4d3ed13cf3305aa543eb73ca538872092c83e7ccdf9e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6574 | 5856 bytes |
font_01_sfnt_off0000794a.bin33960adc29a89999c8173d17fc96e8cb039529a1432109c6d99b0a2878b06597 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x794A | 10060 bytes |
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