MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector at `ttraff.ru`. This redirector is disguised with a keyword suggesting a legitimate document, "blood test types pdf". The ML classifier strongly flagged this PDF as malicious, and the presence of a malicious redirector indicates an attempt to lure users to harmful 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=blood+test+types+pdf
- http://files.pennjournalconlaw.com/uploads/1/3/2/6/132682694/bawibixijuzawo.pdf
- http://files.jerrianns.com/uploads/1/3/0/7/130776037/9171495.pdf
- http://files.tacticalinsider.com/uploads/1/3/0/9/130969312/69fc1b.pdf
- https://cdn.shopify.com/s/files/1/0437/8466/7297/files/radoraxafokugasaxekoka.pdf
- https://cdn.shopify.com/s/files/1/0432/3491/8558/files/86575824165.pdf
- https://cdn.shopify.com/s/files/1/0433/2391/6443/files/mathematics_project_models.pdf
- https://cdn.shopify.com/s/files/1/0430/8631/5684/files/differential_calculus_formulas.pdf
- https://cdn.shopify.com/s/files/1/0430/7124/2389/files/xixafadexemuxemijivatalun.pdf
- https://cdn.shopify.com/s/files/1/0434/3142/8248/files/munabozinagut.pdf
- https://cdn.shopify.com/s/files/1/0432/9829/1870/files/futex.pdf
- https://cdn.shopify.com/s/files/1/0432/5202/3458/files/kitetotalejasarapagov.pdf
- https://cdn.shopify.com/s/files/1/0432/5218/7298/files/womesede.pdf
- https://cdn.shopify.com/s/files/1/0429/8519/3625/files/memajasop.pdf
- https://cdn.shopify.com/s/files/1/0431/3264/9636/files/96879562124.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_off00005f5a.bin2f82c6eb60962e377daaca5fb91880c247a6d61ff66ac16bbc51e38033f35cf4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F5A | 4880 bytes |
font_01_sfnt_off0000701b.binf02b8f40d3a1ca7f5b95f95b3552c7f698d667d01babe426e98e5f4c111c54a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x701B | 10232 bytes |
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