MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=anu+b.+pharmacy+syllabus+pdf'. The document body, though heavily obfuscated, contains references to the same URL and appears to be a lure for downloading a syllabus. The presence of a link farm and ML classification further support its malicious nature.
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=anu+b.+pharmacy+syllabus+pdf
- http://mudigetol.rhondamills.com/uploads/1/3/0/8/130814297/sitije.pdf
- http://files.stem2schools.org/uploads/1/3/2/6/132681992/sapowiri-zagoxopub.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/0801/6027/files/12423229241.pdf
- https://cdn.shopify.com/s/files/1/0431/8248/9762/files/xokufeveriles.pdf
- https://cdn.shopify.com/s/files/1/0431/5345/7320/files/7306544302.pdf
- https://cdn.shopify.com/s/files/1/0437/6290/9335/files/adrenalectomia_laparoscopica.pdf
- https://cdn.shopify.com/s/files/1/0429/4829/6857/files/libikibezet.pdf
- https://cdn.shopify.com/s/files/1/0435/5883/0229/files/57877999626.pdf
- https://cdn.shopify.com/s/files/1/0429/3459/9843/files/google_script_print_to_console.pdf
- https://cdn.shopify.com/s/files/1/0429/4203/8182/files/fagiraziseretofopetu.pdf
- https://cdn.shopify.com/s/files/1/0450/6091/5350/files/dejupireruvipokixitatadal.pdf
- https://cdn.shopify.com/s/files/1/0434/7972/8281/files/53518734209.pdf
- https://cdn.shopify.com/s/files/1/0449/8394/3326/files/aprender_a_leer_y_escribir_nios.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_off0000a598.binfb057b60845a6261b96dbfaeb3ca25fce37ee96d3befe201a055153ef599d266 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA598 | 5656 bytes |
font_01_sfnt_off0000b8a1.binddc0c00549ebced5482ddc502cf531f5a83673d04384d97b9f38201421a70911 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8A1 | 15088 bytes |
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