MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains a large number of embedded links, with one pointing to a known malicious redirector. The document body is heavily obfuscated, but the presence of numerous external links suggests a link farm or redirection attack. 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/pify?keyword=pharmaceutical+quality+assurance+in+class+industry+and+market+pdf
- http://files.streetsboroumc.com/uploads/1/3/1/4/131437194/zuvate.pdf
- http://files.useddredge.net/uploads/1/3/2/7/132741110/39f1b4f.pdf
- http://files.moot.nilsinternational.org/uploads/1/3/1/3/131398338/virisakupusinagabep.pdf
- http://files.streetsboroumc.com/uploads/1/3/1/4/131437194/
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53607129813.pdf
- https://cdn.shopify.com/s/files/1/0431/9988/9569/files/74231249606.pdf
- https://cdn.shopify.com/s/files/1/0430/4610/9341/files/dapasijimumekalupumi.pdf
- https://cdn.shopify.com/s/files/1/0435/7803/2296/files/45045139585.pdf
- https://cdn.shopify.com/s/files/1/0440/9245/7112/files/xunowikukufezogonipo.pdf
- https://cdn.shopify.com/s/files/1/0430/9286/9281/files/39293843342.pdf
- https://cdn.shopify.com/s/files/1/0428/3393/6547/files/36384690809.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdf
- https://cdn.shopify.com/s/files/1/0431/7275/7668/files/repiveguku.pdf
- https://cdn.shopify.com/s/files/1/0433/7506/7294/files/64658087754.pdf
- https://cdn.shopify.com/s/files/1/0437/6281/1031/files/bufabef.pdf
- https://cdn.shopify.com/s/files/1/0437/1188/9562/files/tununi.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/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007d14.binbb68423f09adfc8a88fd72b061639f0708906368d4540c5cf977cc891569bbc8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D14 | 5460 bytes |
font_01_sfnt_off00008f80.bincd3b19d7f4440c770d8a192e7d2adaed791249838214c590086af6a6d0f3ef4a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F80 | 10632 bytes |
font_02_sfnt_off0000b3a3.bin2979ab094da45d2f1832ac7b5136ba89e9d8057d0a9e32c55ff41df61c603865 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3A3 | 17076 bytes |
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