MALICIOUS
152
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Annals of surgical case reports impact factor' and includes the malicious URL, suggesting a lure to a malicious site disguised as an academic resource. The ML classifier strongly flagged this PDF as malicious.
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=annals+of+surgical+case+reports+impact+factor
- http://fekor.spectrumautorefinishing.com/uploads/1/3/1/1/131164250/tafada_tivebi_puzezeja.pdf
- https://cdn.shopify.com/s/files/1/0429/6749/8911/files/78665578143.pdf
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/reformas_borbonicas_en_el_peru.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27392185694.pdf
- https://cdn.shopify.com/s/files/1/0429/5249/1159/files/talasaruxufabezugerubejug.pdf
- https://cdn.shopify.com/s/files/1/0435/1403/6376/files/electronically_sign_free.pdf
- https://cdn.shopify.com/s/files/1/0436/2692/2146/files/fopefapabofozeta.pdf
- https://cdn.shopify.com/s/files/1/0434/0485/3402/files/novej.pdf
- https://cdn.shopify.com/s/files/1/0432/1119/4525/files/tinidexubewexa.pdf
- https://cdn.shopify.com/s/files/1/0437/0766/2504/files/entenda_o_autismo.pdf
- https://cdn.shopify.com/s/files/1/0427/4749/4567/files/weight_gurus_scale.pdf
- https://cdn.shopify.com/s/files/1/0446/6668/3545/files/microsoft_access_database_sample.pdf
- https://cdn.shopify.com/s/files/1/0436/7591/0294/files/netflix_app_windows_10_offline.pdf
- https://cdn.shopify.com/s/files/1/0434/8946/0376/files/classification_of_azo_dyes.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_off00005ea9.bin31b53d4e818a78562b54d66a98db3fd54a1270ad8cd47adb99c47a20a349e3a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EA9 | 5324 bytes |
font_01_sfnt_off000070aa.bine2b27b2bd48a7f59b0e71c505fd7ebf34a0edfe9a03d9b9851710d02e1dc9884 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70AA | 10100 bytes |
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