MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded links, with a critical heuristic identifying a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains a URL that points to a redirector, and many other links point to external PDF files, suggesting a link farm or SEO poisoning attempt. The ML classifier also strongly indicated 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=carenado+phenom+100+x+plane
- http://files.marilynoconnell.com/uploads/1/3/1/4/131452836/kovamebiragifem_dovitu_wojedodek.pdf
- http://files.madaassoc.org/uploads/1/3/0/8/130874655/jigumimitigatotadum.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/5314/6517/files/the_deep_blue_sea_1955.pdf
- https://cdn.shopify.com/s/files/1/0431/8016/3227/files/65743451212.pdf
- https://cdn.shopify.com/s/files/1/0437/7955/5486/files/bidezuxeviru.pdf
- https://cdn.shopify.com/s/files/1/0433/1926/3397/files/wepabuzizugodolor.pdf
- https://cdn.shopify.com/s/files/1/0429/8768/4003/files/44958131518.pdf
- https://cdn.shopify.com/s/files/1/0431/2639/0951/files/queen_bed_sheet_sets_canada.pdf
- https://cdn.shopify.com/s/files/1/0433/7287/1832/files/27225863358.pdf
- https://cdn.shopify.com/s/files/1/0430/8126/9401/files/jobcentre_plus_travel_discount_card_application_form.pdf
- https://cdn.shopify.com/s/files/1/0436/0460/7139/files/little_drummer_girl_tv_series_episode_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/7302/7749/files/71200577618.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_off00004b94.binef50ba910dbf32f8e01e599c76488f2f0dd1e7e395a2d942624e703032600a56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B94 | 5188 bytes |
font_01_sfnt_off00005d0f.bin3b5903c8af11f8521b81ba2d39a3fd38cb12409a25de9fd73ac4e7d4a66b110d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D0F | 9860 bytes |
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