MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting it is a lure for 'kumon math workbooks free pdf'. The presence of multiple Shopify URLs, some confirmed benign and others unknown, alongside the malicious redirector, suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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.com/pify?keyword=kumon+math+workbooks+free++pdf
- http://vinixuj.alswinners.com/uploads/1/3/1/6/131637257/53ad2.pdf
- http://nepaxu.yesindustrialsupply.com/uploads/1/3/0/9/130969280/212746d.pdf
- http://pazum.trangallan.com/uploads/1/3/1/6/131606339/ffdb97a63608.pdf
- http://files.tfamartists.ca/uploads/1/3/1/3/131398250/gigijadugepetob.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/8368/5274/files/95866764116.pdf
- https://cdn.shopify.com/s/files/1/0434/1753/4629/files/24064272183.pdf
- https://cdn.shopify.com/s/files/1/0440/9776/5528/files/89012742027.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdf
- https://cdn.shopify.com/s/files/1/0432/3983/3763/files/necrons_codex_7e.pdf
- https://cdn.shopify.com/s/files/1/0435/4863/9391/files/rudram_meaning_in_telugu.pdf
- https://cdn.shopify.com/s/files/1/0434/9417/8982/files/tekixoxanazofesefimez.pdf
- https://cdn.shopify.com/s/files/1/0431/9117/3278/files/bojaninirunozi.pdf
- https://cdn.shopify.com/s/files/1/0434/4132/4184/files/galadixute.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_off00005027.bin32fe4816bdc2a577ea12e5ca2c0be850c537716f64feb428f6d9841d96245659 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5027 | 5512 bytes |
font_01_sfnt_off000062c0.bin67d6d70171147538cb057511021952bbbf71a3fdb4d428438fe3b235b06fe787 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62C0 | 9892 bytes |
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