MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF document contains a lure for a 'Daffynition decoder answer key' which, when clicked, redirects to a known malicious URL (ttraff.ru). The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier strongly supports the malicious verdict.
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/pify?keyword=daffynition+decoder+answer+key+a-+41
- http://files.camillescause.com/uploads/1/3/1/4/131437106/madudisonerufotuzolu.pdf
- http://files.rainiernetworks.com/uploads/1/3/2/7/132741029/9bddacc66a.pdf
- http://gatuki.greatfallstrapandskeet.com/uploads/1/3/1/1/131163744/8852303.pdf
- http://rifirupa.jecreativity.com/uploads/1/3/1/4/131406709/6606707.pdf
- https://cdn.shopify.com/s/files/1/0431/8471/7979/files/63246301232.pdf
- https://cdn.shopify.com/s/files/1/0436/8711/6965/files/tuzekunapejubowilivipa.pdf
- https://cdn.shopify.com/s/files/1/0431/5293/3020/files/12435045088.pdf
- https://cdn.shopify.com/s/files/1/0432/1781/3661/files/activity_based_costing_abc.pdf
- https://cdn.shopify.com/s/files/1/0431/9707/1524/files/25085308451.pdf
- https://cdn.shopify.com/s/files/1/0437/7526/2869/files/acca_f6_notes_2020.pdf
- https://cdn.shopify.com/s/files/1/0430/9578/5629/files/namupemavolopaje.pdf
- https://cdn.shopify.com/s/files/1/0434/4666/5382/files/give_formal_stamp_of_approval_crossword_clue.pdf
- https://cdn.shopify.com/s/files/1/0437/8984/4631/files/engineering_design_by_dieter_free_download.pdf
- https://cdn.shopify.com/s/files/1/0440/8170/9206/files/mujavutijamumevadusav.pdf
- https://cdn.shopify.com/s/files/1/0429/8457/1031/files/25374774932.pdf
- https://cdn.shopify.com/s/files/1/0430/8477/5577/files/verepixuvoxusamelajup.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000063b2.bindfcad888afc056dce857b5bf4d2c33844bc2e72d4598ae91a76790fe08af6ef7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63B2 | 5412 bytes |
font_01_sfnt_off00007656.bin289854c0292170102eeea8cd8d9fa039b7e5adf06f71653ea533c14c4e2d2c34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7656 | 2140 bytes |
font_02_sfnt_off00008031.bin065e198d0b292e814852ded4071a5444963f2ea5a0a817a1a7b3345622775d42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8031 | 10688 bytes |
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