MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a PDF related to school exercises, likely a lure. The primary malicious URL is https://ttraff.cc/pify?keyword=br%25C3%25BCche+k%25C3%25BCrzen+6+klasse+%25C3%25BCbungen+pdf, which is designed to redirect users to further 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=br%25C3%25BCche+k%25C3%25BCrzen+6+klasse+%25C3%25BCbungen+pdf
- http://files.3bugfarm.com/uploads/1/3/1/6/131636655/nobamasuzikab.pdf
- http://sovoruso.savt.ie/uploads/1/3/1/6/131607600/2073126.pdf
- http://files.thecbdshoppe.net/uploads/1/3/1/6/131636655/3307238.pdf
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/mukawovag.pdf
- https://cdn.shopify.com/s/files/1/0432/2846/3271/files/54948636671.pdf
- https://cdn.shopify.com/s/files/1/0427/4244/8295/files/zebegedanutolusawan.pdf
- https://cdn.shopify.com/s/files/1/0432/7620/6240/files/77656408984.pdf
- https://cdn.shopify.com/s/files/1/0436/0775/2866/files/48835143466.pdf
- https://cdn.shopify.com/s/files/1/0432/4343/8242/files/50358208848.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49839171509.pdf
- https://cdn.shopify.com/s/files/1/0431/5430/9274/files/kujabisozux.pdf
- https://cdn.shopify.com/s/files/1/0432/2807/0052/files/49167094105.pdf
- https://cdn.shopify.com/s/files/1/0432/4697/7188/files/99733424161.pdf
- https://cdn.shopify.com/s/files/1/0435/9212/2527/files/acrobat_pro_reader_free_download.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_off000057c3.binf9772d1d6861c71c23d973cac11103deb9e898c0ff8b3e4b55718b58447f969f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57C3 | 5992 bytes |
font_01_sfnt_off00006bef.bin01a37060de240e387cbc7feca21495ac10a42faeaaf09e16bdafa7ccb741d5fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BEF | 10876 bytes |
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