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 prominent link, 'https://ttraff.ru/wb?keyword=today%20is%20monday%20free%20worksheets', is identified as a malicious redirector. The document body, though partially corrupted, also contains this URL and other PDF links, suggesting a lure to download potentially malicious content or visit phishing sites. The ML classifier strongly supports the malicious nature of this PDF.
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=today%20is%20monday%20free%20worksheets
- http://files.professorwillis.com/uploads/1/3/0/9/130969819/3536095.pdf
- http://files.grundmeyerleadersearch.com/uploads/1/3/1/6/131636990/sifixoj_jutixepipi_bevasagipaxuja_sivosukisozi.pdf
- http://files.jewellhjohnson.com/uploads/1/3/2/8/132816158/252b1d3f634b0.pdf
- http://files.vivagreb.com/uploads/1/3/1/6/131637034/kimab-sugala.pdf
- http://files.birnamwoodlabs.com/uploads/1/3/1/4/131438448/zeruzuf.pdf
- http://files.studioviemen.com/uploads/1/3/0/7/130739315/berafoxi.pdf
- http://files.fsumarinemegafauna.com/uploads/1/3/0/7/130739830/baludurelupidafevuk.pdf
- http://files.salemtownneighbors.org/uploads/1/3/2/7/132712163/770419a3265b44.pdf
- http://files.myfaithfulcatholicjourney.com/uploads/1/3/2/6/132695660/3893591.pdf
- http://files.largscolumba.org/uploads/1/3/1/4/131438839/kumodagowadokex-dogukajumurus-wozizid-zexipu.pdf
- http://files.weednwenches.net/uploads/1/3/1/3/131380482/9657223.pdf
- https://puxekagoduse.files.wordpress.com/2020/06/nuvodazenapuxujelozetanem.pdf
- https://zizugulavak.files.wordpress.com/2020/07/2979813946.pdf
- https://ligeveg.files.wordpress.com/2020/07/43507558431.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35535883354.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/juxumadebamapetutorobegew.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.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_off00006452.bin6aa2a9ccfc6eceb826c267b4ec13cfe2a39bf1ec0fc24ded76718020f81887a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6452 | 5112 bytes |
font_01_sfnt_off0000759e.bindcae2d742540d9a94e7ddc22bff135ee3eb89de6c1dac6ce0de4a6d9bbf0ab88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x759E | 10756 bytes |
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