MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics as a known malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.
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=4.+3+exercises+algebra+1+answers
- http://files.arkansasrivergoldens.com/uploads/1/3/0/7/130776298/5e3e2e9.pdf
- http://files.pvguider.com/uploads/1/3/1/0/131069764/jinatorer-bisurajarinor-wipetofifu-penodomina.pdf
- http://files.support.famhealth.com/uploads/1/3/1/4/131437740/3357936.pdf
- http://banasud.bridgit-dengel-gaspard.com/uploads/1/3/2/7/132712358/5578137.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/5593/8725/files/42596724505.pdf
- https://cdn.shopify.com/s/files/1/0428/7424/1187/files/25983447756.pdf
- https://cdn.shopify.com/s/files/1/0435/2904/4119/files/publication_ethics.pdf
- https://cdn.shopify.com/s/files/1/0443/1849/0780/files/kalunevenevuxonu.pdf
- https://cdn.shopify.com/s/files/1/0431/6338/6016/files/14253896954.pdf
- https://cdn.shopify.com/s/files/1/0440/3278/6597/files/formula_shortcut_keys_in_excel_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/0432/1184/files/entrepreneur_magazine_january_2020.pdf
- https://cdn.shopify.com/s/files/1/0437/2915/8295/files/93148363426.pdf
- https://cdn.shopify.com/s/files/1/0429/9977/5381/files/16594421312.pdf
- https://cdn.shopify.com/s/files/1/0433/6294/3144/files/gpu_based_parallel_implementation_of_swarm_intelligence_algorithms.pdf
- https://cdn.shopify.com/s/files/1/0428/6831/0172/files/rajabisezu.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_off000045f7.bincd89abae25417c09301270e6f2938d0d8ed07cc1627049795d49b17905f25189 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x45F7 | 5508 bytes |
font_01_sfnt_off000058e3.binab95efc86832f167a4d0ae67258cc9951b18b57a5f0bd6d5a7de6ad793c69d78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58E3 | 9560 bytes |
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