MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though partially obfuscated, suggests an educational context ('Past tense irregular verbs worksheet') which is likely a lure. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to malicious infrastructure, likely for further exploitation or phishing.
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/wb?keyword=past%20tense%20irregular%20verbs%20worksheet
- http://files.musee-militaire.com/uploads/1/3/1/3/131381464/ffef5cb206.pdf
- http://files.caravanoflore.com/uploads/1/3/1/1/131163832/sexosodetagov-bibelu-liviruzo.pdf
- http://files.drconsultinginc.com/uploads/1/3/0/7/130775747/83554ec9ffe2f.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/7427/2924/files/vitowim.pdf
- https://cdn.shopify.com/s/files/1/0433/1290/6405/files/wuzelif.pdf
- https://cdn.shopify.com/s/files/1/0433/8201/4108/files/rotugidemuluxijux.pdf
- https://cdn.shopify.com/s/files/1/0429/4977/1430/files/46134552661.pdf
- https://cdn.shopify.com/s/files/1/0432/7650/1147/files/7378318233.pdf
- https://cdn.shopify.com/s/files/1/0432/8233/3851/files/83943694889.pdf
- https://cdn.shopify.com/s/files/1/0433/9335/1843/files/chac_mool_resumen.pdf
- https://cdn.shopify.com/s/files/1/0436/0824/4381/files/fiditit.pdf
- https://cdn.shopify.com/s/files/1/0430/9454/0452/files/4578203154.pdf
- https://cdn.shopify.com/s/files/1/0430/3332/9817/files/44301042640.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_off00004a46.bin8127cde6213cb1b5ae09d7781a974281c7d7917081d953c2163d9ea68201c4fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A46 | 5304 bytes |
font_01_sfnt_off00005c5a.bina6a88b6006a55ea0470931cb4645a63aba3bd0aac296b23c31611dc3241ccb21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C5A | 9360 bytes |
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