MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting other PDFs, and one critical link redirecting to a known malicious URL. The primary malicious link is https://ttraff.cc/pify?keyword=atos+processuais+novo+cpc+resumo+pdf, which is designed to lure users into downloading further content. The ML classifier strongly indicated maliciousness, and the PDF structure itself is indicative of a link-farming or redirection attack.
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=atos+processuais+novo+cpc+resumo+pdf
- http://files.thenewstaketwo.com/uploads/1/3/1/4/131407734/soperorawese-kidufujikol.pdf
- http://files.faithfullyrestoredwomen.com/uploads/1/3/2/7/132740498/ragelupijuxunege.pdf
- http://files.taillacdobermans.com/uploads/1/3/2/8/132814929/mifowaxe-ronewuzezikobe-gebenivijo.pdf
- http://files.eric-goodman.com/uploads/1/3/1/8/131857213/5880873.pdf
- http://files.kulitjerukbali.net/uploads/1/3/0/7/130738955/1448541.pdf
- https://cdn.shopify.com/s/files/1/0435/3913/6661/files/fowumip.pdf
- https://cdn.shopify.com/s/files/1/0430/5072/9634/files/87665456752.pdf
- https://cdn.shopify.com/s/files/1/0431/5453/8658/files/zezeluxoxuwelitex.pdf
- https://cdn.shopify.com/s/files/1/0431/6332/0469/files/ninujosivowovi.pdf
- https://cdn.shopify.com/s/files/1/0431/0522/2822/files/cch_chuyn_sang_nh.pdf
- https://cdn.shopify.com/s/files/1/0437/8787/8549/files/fallout_3_railway_rifle.pdf
- https://cdn.shopify.com/s/files/1/0429/1756/0473/files/natuzekemi.pdf
- https://cdn.shopify.com/s/files/1/0433/0638/5573/files/8984102455.pdf
- https://cdn.shopify.com/s/files/1/0434/1340/5850/files/36301784903.pdf
- https://cdn.shopify.com/s/files/1/0432/2649/7182/files/makikuset.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006b40.bin9f3add298f8252a457d8ec73168281531aef432b47a40b0fcd90a5eb2e1b3b7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B40 | 5316 bytes |
font_01_sfnt_off00007d4a.bin4489f0a1839e1f406c3166f6533f35279a658047ba8f3b759162637b3580783a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D4A | 11808 bytes |
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