MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, many of which point to external PDF files, creating a link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=alphabet+trace+sheets+printables', is identified as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious infrastructure under the guise of educational 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.ru/pify?keyword=alphabet+trace+sheets+printables
- http://files.realtoreducationcenter.com/uploads/1/3/1/4/131407511/zusaj.pdf
- http://xotozaz.hanmaumchurchdfw.com/uploads/1/3/1/4/131413418/2549060.pdf
- http://mafubu.visuallyaccessiblecities.ca/uploads/1/3/1/4/131438819/bafezawejabep.pdf
- http://vupetoxo.2ndhandranch.com/uploads/1/3/2/3/132303382/9154236.pdf
- http://files.worth2000words.com/uploads/1/3/0/7/130739570/975082.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/2790/7239/files/78076868354.pdf
- https://cdn.shopify.com/s/files/1/0430/5738/1530/files/27134863616.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdf
- https://cdn.shopify.com/s/files/1/0430/0875/3827/files/tibimam.pdf
- https://cdn.shopify.com/s/files/1/0433/8860/0478/files/14729811371.pdf
- https://cdn.shopify.com/s/files/1/0430/9362/2935/files/vodujikugiremu.pdf
- https://cdn.shopify.com/s/files/1/0449/8512/2984/files/acf_nested_repeater.pdf
- https://cdn.shopify.com/s/files/1/0439/8697/6926/files/vs_code_spell_check.pdf
- https://cdn.shopify.com/s/files/1/0432/7663/2220/files/amides_and_amines.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_off00006694.binc5f420fdfe2d424acc3e4ee029bcb81eea9380d241d9d9e34a446a71c300cf33 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6694 | 5152 bytes |
font_01_sfnt_off00007802.bin937a9125ceda1014b82ff518838db847fad20ce539f2808cb8c2d2efe796b2db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7802 | 10256 bytes |
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