MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. Additionally, the PDF hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to obscure the malicious intent. The ML classifier strongly flagged this PDF as malicious. The embedded URL in the document body, 'https://ttraff.cc/pify?keyword=neuro+exam+template+pdf', is the primary indicator of malicious activity.
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=neuro+exam+template+pdf
- http://files.tecsmithinc.com/uploads/1/3/1/4/131407802/8897386.pdf
- http://files.copelincontract.com/uploads/1/3/1/4/131406222/nebugux-wibovuva-fakomilorivedud.pdf
- http://files.daveflynn.com/uploads/1/3/2/7/132711965/lamadaxelag_loxosak_ninenoxik_xitajefedaj.pdf
- https://cdn.shopify.com/s/files/1/0436/9294/9658/files/karawuwitaxusikonulusajan.pdf
- https://cdn.shopify.com/s/files/1/0436/5120/3225/files/36801923569.pdf
- https://cdn.shopify.com/s/files/1/0433/3764/6245/files/87436741480.pdf
- https://cdn.shopify.com/s/files/1/0433/5819/1768/files/19624752832.pdf
- https://cdn.shopify.com/s/files/1/0429/1916/6119/files/bipomaniwojuwadukimim.pdf
- https://cdn.shopify.com/s/files/1/0432/8685/5840/files/ayurvedic_medicine_books_in_telugu.pdf
- https://cdn.shopify.com/s/files/1/0432/9334/3899/files/mikodaweramazevetudu.pdf
- https://cdn.shopify.com/s/files/1/0429/6772/8279/files/dazavetewizuwunebiki.pdf
- https://cdn.shopify.com/s/files/1/0431/1253/0081/files/legarurinekevenevujit.pdf
- https://cdn.shopify.com/s/files/1/0437/6795/5610/files/90789003234.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_off00015f44.binf1f85348a88c69f14150f1c7cd789aa5e52812ee57fff6f805b34ebc277f4be1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15F44 | 5048 bytes |
font_01_sfnt_off00017065.bin83700655b1dab7020bb8604daa094388b608499a74f478293596c7eb020cb9c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17065 | 10340 bytes |
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