MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm designed to appear as educational worksheets, but it redirects to a malicious URL. The ML classifier strongly indicated maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to known malicious infrastructure. The embedded URLs are likely part of a SEO link farm tactic to improve search engine ranking for malicious 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=multiplication+and+division+worksheets+2+5+10
- http://files.northsidelibrary.com/uploads/1/3/0/9/130969818/bopipakuwuwo_xoxulexegi.pdf
- http://files.mirasolphysicalrehab.com/uploads/1/3/2/6/132681767/jodowaxopefibuw.pdf
- http://files.sara-rodrigues.com/uploads/1/3/1/8/131857916/6917007.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0427/6623/7852/files/8160016523.pdf
- https://cdn.shopify.com/s/files/1/0430/7773/0455/files/tulesupomojemekeki.pdf
- https://cdn.shopify.com/s/files/1/0460/8701/2516/files/15489525840.pdf
- https://cdn.shopify.com/s/files/1/0428/7735/4143/files/54393690979.pdf
- https://cdn.shopify.com/s/files/1/0436/0224/7838/files/86740714633.pdf
- https://cdn.shopify.com/s/files/1/0432/7361/7576/files/53283444466.pdf
- https://cdn.shopify.com/s/files/1/0432/3033/1047/files/vinuwimewegefedigiles.pdf
- https://cdn.shopify.com/s/files/1/0434/4391/2854/files/internet_archive_wayback_machine.pdf
- https://cdn.shopify.com/s/files/1/0430/1278/4277/files/12035811773.pdf
- https://cdn.shopify.com/s/files/1/0431/2599/7722/files/gobapopuwe.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000567a.bindae4a68213ab03a8fda0476b146a5f49c8d7a69d1777023f74669b5c8e6bc0a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x567A | 5716 bytes |
font_01_sfnt_off00006a02.binb506a09788dbc4eaab1de9e5dd5775cce2f04b1bd8dc51e7bc5fd8c4684e7b14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A02 | 9988 bytes |
font_02_sfnt_off00008c0b.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C0B | 4324 bytes |
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