MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, includes a URL that appears to be part of a link farm strategy, likely intended to drive traffic to malicious sites. 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.ru/wb?keyword=rectangular%20pyramid%20volume%20worksheet
- http://gomogosu.tilliesnevada.com/uploads/1/3/1/4/131407588/fujufapivamawojaxok.pdf
- http://gotikukur.alcorstudios.com/uploads/1/3/0/9/130969503/8038003.pdf
- http://files.killernailzzz.com/uploads/1/3/2/6/132681378/7b031ca526.pdf
- http://fontawesome.iohttp://fontawesome.io/license/
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/3433/7695/files/4675971905.pdf
- https://cdn.shopify.com/s/files/1/0432/2318/7614/files/10185836456.pdf
- https://cdn.shopify.com/s/files/1/0430/5184/3737/files/75271026852.pdf
- https://cdn.shopify.com/s/files/1/0449/3220/2651/files/49638670973.pdf
- https://cdn.shopify.com/s/files/1/0437/7100/3031/files/7002348007.pdf
- https://cdn.shopify.com/s/files/1/0432/5549/6866/files/pratidin_newspaper_bengali.pdf
- https://cdn.shopify.com/s/files/1/0438/4840/1046/files/tefovoponoxamabogibigu.pdf
- https://cdn.shopify.com/s/files/1/0428/4986/1791/files/probability_and_statistical_inference_9th_edition_solutions_manual.pdf
- https://cdn.shopify.com/s/files/1/0448/9232/3995/files/understanding_renewable_energy_systems.pdf
- https://cdn.shopify.com/s/files/1/0432/0460/8155/files/81259354306.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000560c.bin07d413203244e92eb5f48eb7489132f1321f9fa46eb1fc53dedd0a1137feecaf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x560C | 1812 bytes |
font_01_sfnt_off00005eee.bincf34487e4838effea6a745841ebe3142dbaf3b09c8eaa6773d495ac040d7f112 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EEE | 5812 bytes |
font_02_sfnt_off000072aa.bind08f2bc0f82865676cdce10b3d5d01b723bef9992f4f5ed0bc7a46b60b5624d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72AA | 9880 bytes |
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