MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links redirects to a known malicious URL, ttraff.ru, suggesting a link farm or SEO poisoning attack designed to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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/wb?keyword=adding%20fractions%20and%20mixed%20numbers%20worksheet%20pdf
- http://files.agrowingplace.ca/uploads/1/3/1/4/131407857/damarizeka.pdf
- http://files.roberthillpsychologist.com/uploads/1/3/1/4/131483371/7263964.pdf
- http://files.seedrinkeat.com/uploads/1/3/2/6/132681204/jalosozapatobe.pdf
- http://files.shandsschool.org/uploads/1/3/1/8/131871821/vukusowolu-gisumitozi-roxijuxokekiju.pdf
- http://files.vapc.sg/uploads/1/3/2/6/132695332/puwiga-pirowemejepaw-namibufos.pdf
- http://files.essentialsspapasadena.com/uploads/1/3/0/9/130969992/628184172.pdf
- http://files.bluecruiseturkeytours.com/uploads/1/3/1/3/131384249/mirazasaxidaxugux.pdf
- http://files.mikezamojski.com/uploads/1/3/1/3/131380397/wokadugo-tonotetoje-fivunebogewiz-kiruxiwufas.pdf
- http://files.paramountrec.com/uploads/1/3/0/7/130775827/wanuvawofi.pdf
- https://mazasolojej.files.wordpress.com/2020/06/wanulumapinizasenela.pdf
- https://gidapunokiru.files.wordpress.com/2020/06/nekavuposadamowebopig.pdf
- https://zabirile.files.wordpress.com/2020/07/xepadov.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66083684812.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemisavixazesunomezixe.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sobobubujuwin.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_off000078c0.bin46d8e8bcb29dcc205c9b4dfd5be5f09d3ed8229010ccb693ba3d9a6537ef201e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78C0 | 5772 bytes |
font_01_sfnt_off00008c3a.bin565dce9145392c5d86f8b21706ed45b6150bbbfd7a00ba880a1801aecd80c44a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C3A | 9888 bytes |
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