MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm and a redirector to a known malicious URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'grade 4 math word problems worksheets pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious.
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=grade+4+math+word+problems+worksheets+pdf
- http://files.touchdayspa.net/uploads/1/3/1/4/131453917/fipejikoxi.pdf
- http://files.brownsvilleumc.com/uploads/1/3/1/8/131871424/lorafojunopux-kapef-lidusamabol.pdf
- http://files.professionalcapitalpartners.com/uploads/1/3/1/1/131164009/d871229aecd51.pdf
- http://files.littlepoppitsphotography.com/uploads/1/3/0/7/130740573/57d8b69405.pdf
- https://cdn.shopify.com/s/files/1/0431/6302/5557/files/tratamiento_meningitis_bacteriana.pdf
- https://cdn.shopify.com/s/files/1/0429/1097/4108/files/boxejegatuxavagagawizule.pdf
- https://cdn.shopify.com/s/files/1/0433/7827/8563/files/26709739722.pdf
- https://cdn.shopify.com/s/files/1/0439/4388/7016/files/nabafojufiga.pdf
- https://cdn.shopify.com/s/files/1/0432/8118/6972/files/zovoxuwezobesu.pdf
- https://cdn.shopify.com/s/files/1/0429/9912/0033/files/jixogoboxuginusagafamekak.pdf
- https://cdn.shopify.com/s/files/1/0434/2287/5797/files/talerofu.pdf
- https://cdn.shopify.com/s/files/1/0428/8492/3555/files/73636130505.pdf
- https://cdn.shopify.com/s/files/1/0434/5207/2088/files/titejebuloxopifelaj.pdf
- https://cdn.shopify.com/s/files/1/0427/8976/5276/files/davonozurixipiwatizopi.pdf
- https://cdn.shopify.com/s/files/1/0438/3378/6525/files/3758695860.pdf
- https://cdn.shopify.com/s/files/1/0437/7280/5277/files/non_cognitive_skills_and_factors_in_educational_attainment.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_off00006530.bina593bb87b6d3e40f1f34da4dfd10316d0c7858bab3c21cdbf2ccff83ca1e5b36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6530 | 5696 bytes |
font_01_sfnt_off0000788e.bin1380edfaf9ff353585011353fc3440e3b59bad7cff4e609a8d34d444cd196263 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x788E | 10352 bytes |
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