MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, many of which point to what appears to be a link farm designed to distribute SEO-optimized PDFs. One prominent link, 'https://ttraff.cc/pify?keyword=free+kindergarten+math+worksheets+comparing+numbers', is identified as a malicious redirector. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.
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.cc/pify?keyword=free+kindergarten+math+worksheets+comparing+numbers
- http://likal.impact7generations.com/uploads/1/3/1/4/131410227/4509c118.pdf
- http://files.medicalequipmentcorp.com/uploads/1/3/1/3/131380756/2898562.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xixuvedivikeror.pdf
- https://cdn.shopify.com/s/files/1/0430/9647/3749/files/29716318269.pdf
- https://cdn.shopify.com/s/files/1/0431/8678/2369/files/52154558511.pdf
- https://cdn.shopify.com/s/files/1/0447/3444/7770/files/libro_arqueologia_del_saber.pdf
- https://cdn.shopify.com/s/files/1/0428/5497/3606/files/gimelizokex.pdf
- https://cdn.shopify.com/s/files/1/0429/4213/6476/files/canales_de_comunicacion_electronica.pdf
- https://cdn.shopify.com/s/files/1/0431/0709/0581/files/35445509645.pdf
- https://cdn.shopify.com/s/files/1/0437/8938/5890/files/visual_guide_poker_hands.pdf
- https://cdn.shopify.com/s/files/1/0437/7929/3338/files/18222373224.pdf
- https://cdn.shopify.com/s/files/1/0429/7362/6524/files/dumunulup.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_off00006b94.bin53998c0f70066638cec40bdc57fc96cfe9921c76bb0b8133553d232fa7c3f168 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B94 | 5708 bytes |
font_01_sfnt_off00007ee3.binc0ba4c4b4959f3f8903a3164c4f8cb58bd3c5e9a11c2c81209d8aeb84a211b53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EE3 | 10220 bytes |
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