MALICIOUS
170
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF is identified as an image-only lure, typical of phishing attempts. It contains a critical PDF_MALICIOUS_REDIRECTOR_LINK firing, pointing to ttraff.ru, which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same redirector URL and numerous other PDF links, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also 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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 29 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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=chess+board+3d+model+free
- http://files.bluemountainseimei.com/uploads/1/3/1/0/131070124/dowajixupu.pdf
- http://sovipe.newportplant.com/uploads/1/3/1/3/131398455/42ad20e3adb83.pdf
- http://files.howardtaikeff.com/uploads/1/3/0/7/130740625/de1d386cd2d53f.pdf
- http://perage.ihmphotography.co.uk/uploads/1/3/0/8/130814423/987580.pdf
- https://cdn.shopify.com/s/files/1/0429/5042/6780/files/35929677365.pdf
- https://cdn.shopify.com/s/files/1/0459/9601/5773/files/tazufesojusitegefenizoko.pdf
- https://cdn.shopify.com/s/files/1/0435/3284/5207/files/fukafufadawosofamaw.pdf
- https://cdn.shopify.com/s/files/1/0436/9724/2280/files/hockey_score_sheet_sticker_template.pdf
- https://cdn.shopify.com/s/files/1/0433/7179/0486/files/95179403120.pdf
- https://cdn.shopify.com/s/files/1/0428/5743/1196/files/neregosibe.pdf
- https://cdn.shopify.com/s/files/1/0434/2874/1272/files/pdf_bohemian_rhapsody_piano.pdf
- https://cdn.shopify.com/s/files/1/0436/3033/0019/files/kajajafagigavetetod.pdf
- https://cdn.shopify.com/s/files/1/0428/6434/5255/files/lujudajubokodola.pdf
- https://cdn.shopify.com/s/files/1/0432/8760/9497/files/majepepifezisode.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_off00003da1.bin90fbf10fa97296693aaa8b93a714e3dcc946fcea59ff705227b0e6bb924e892d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3DA1 | 5356 bytes |
font_01_sfnt_off00004fa3.bin487e1e0d24cd7597e0b2f84e1321a3f604dc7ce4a53c07f9fb361d0576d00b3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FA3 | 7940 bytes |
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