MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Corrugated sheet screws' and the malicious URL, suggesting a lure to redirect users to malicious content. The ML classifier strongly indicates maliciousness.
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=corrugated+sheet+screws
- http://gikijobuw.nfcss.org/uploads/1/3/0/7/130776433/f01dc8951.pdf
- http://vutolog.malloryaballinger.com/uploads/1/3/2/6/132682076/1629117.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/3404/9703/files/bikevexalowowaxaw.pdf
- https://cdn.shopify.com/s/files/1/0446/1743/3251/files/edema_cerebral_definicion.pdf
- https://cdn.shopify.com/s/files/1/0437/5589/6983/files/dideka.pdf
- https://cdn.shopify.com/s/files/1/0431/2052/5469/files/mikubulafutowukukitena.pdf
- https://cdn.shopify.com/s/files/1/0440/3098/4357/files/40874402773.pdf
- https://cdn.shopify.com/s/files/1/0433/5416/1310/files/32555134402.pdf
- https://cdn.shopify.com/s/files/1/0436/3033/0019/files/28525087675.pdf
- https://cdn.shopify.com/s/files/1/0431/4942/6839/files/canadian_aviation_regulations_english.pdf
- https://cdn.shopify.com/s/files/1/0437/6068/1109/files/nazelamuwegedijifobe.pdf
- https://cdn.shopify.com/s/files/1/0433/6268/0984/files/93384941624.pdf
- https://cdn.shopify.com/s/files/1/0440/8734/5304/files/12486618413.pdf
- https://cdn.shopify.com/s/files/1/0437/4387/1128/files/62813554286.pdf
- https://cdn.shopify.com/s/files/1/0455/3238/1349/files/covering_letter_templates_for_admin_jobs.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_off000042d4.bine9954f040aeeb99ed7e1dbdd2c59f81ae641eea8c7b4614cb22a1d479015907a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x42D4 | 5164 bytes |
font_01_sfnt_off00005472.bin310794810671b62b12532d0c4db9923baf3ab1d1936b52efd3da1a7aaf4eacfb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5472 | 9436 bytes |
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