MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a link farm designed for SEO manipulation. One of these links, 'https://ttraff.cc/pify?keyword=animals+worksheets+for+nursery', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'animals worksheets for nursery', suggesting a lure to disguise the malicious intent. 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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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=animals+worksheets+for+nursery
- http://tikofonil.paintcoveredkids.com/uploads/1/3/2/6/132682137/ginufiwosuz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/21893281207.pdf
- https://cdn.shopify.com/s/files/1/0435/0168/2843/files/pathogenesis_of_recurrent_aphthous_stomatitis.pdf
- https://cdn.shopify.com/s/files/1/0440/1859/8053/files/webariletekeguroweropulo.pdf
- https://cdn.shopify.com/s/files/1/0431/6387/7537/files/34673767221.pdf
- https://cdn.shopify.com/s/files/1/0428/9688/3868/files/kulajarufafevuxakor.pdf
- https://cdn.shopify.com/s/files/1/0430/3159/3113/files/60253290034.pdf
- https://cdn.shopify.com/s/files/1/0433/8073/6165/files/tutorial_belajar_macro_excel_2020.pdf
- https://cdn.shopify.com/s/files/1/0432/1126/0062/files/zarew.pdf
- https://cdn.shopify.com/s/files/1/0433/5167/0943/files/61252500226.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_off00006275.bin11ee2725f5afe44ffedecc23aab52a8ac98e2be7360a1f8d1c5c6c096916ad2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6275 | 5256 bytes |
font_01_sfnt_off00007434.bin4e347814864f056155bb2549c78a0f80406b1c1371c9d140534193d1dc1e661e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7434 | 10240 bytes |
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