MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Android tutorial for beginners 2019 pdf' and the malicious URL, suggesting a lure for phishing or malware distribution. 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.com/wix?keyword=android+tutorial+for+beginners+2019+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/3656/5923/files/xovab.pdf
- https://cdn.shopify.com/s/files/1/0432/0536/1821/files/kumoselagideva.pdf
- https://cdn.shopify.com/s/files/1/0432/1119/4525/files/78938021120.pdf
- https://cdn.shopify.com/s/files/1/0449/7352/3112/files/bsc_nursing_syllabus_bfuhs.pdf
- https://cdn.shopify.com/s/files/1/0440/2040/0286/files/brahmo_samaj_notes.pdf
- https://static.usrfiles.com/ugd/8b2c09_7b9e289297d8403f92ba491e7d1087b3.pdf
- https://static.usrfiles.com/ugd/1813b3_a6b467c52ad448e5b7bd3324f844130d.pdf
- https://static.usrfiles.com/ugd/a2c2bc_df63f8bf5854430dab80363cb3ae94e4.pdf
- https://static.usrfiles.com/ugd/b8c837_f473a4c9cbd24e5c98d85ae586332a7d.pdf
- https://static.usrfiles.com/ugd/b8c837_e4fa1653ca33411caa31b1ca406e597a.pdf
- https://static.usrfiles.com/ugd/95089d_8cead4dee3d64caa9e002ce9d5f358c0.pdf
- https://static.usrfiles.com/ugd/0f1814_13507277e3734c6cb6b54d9fd47b6faf.pdf
- https://static.usrfiles.com/ugd/49be48_0f5df7440c5040dc86dd3e1599f5ac73.pdf
- https://static.usrfiles.com/ugd/15d534_746d0972908840ae99ab4c392b283a9e.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_off000065ad.bin06373139e0c099a842777f7fa60ea0c125aafbfe047a5080b8de004ddd32ae1e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65AD | 5820 bytes |
font_01_sfnt_off0000798c.binb03cb7fe2f3ef165f7a7e58715d49688f548fc8dd2e02bedfd7aabc65054a046 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x798C | 10700 bytes |
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