MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high number of embedded links, with one critical heuristic identifying a malicious redirector. The document body, though heavily corrupted, suggests a lure related to 'medical equipment maintenance manual pdf'. The presence of numerous links, including a malicious redirector, indicates an attempt to distribute further malicious content or conduct phishing. The ML classifier strongly supports the malicious nature of this PDF.
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=medical%20equipment%20maintenance%20manual%20pdf
- http://kuxigabe.wavecrestb209owner.com/uploads/1/3/1/1/131164250/gabuwurazir.pdf
- http://burimuzi.precisionstoneworksinc.com/uploads/1/3/1/3/131379362/5650397.pdf
- https://cdn.shopify.com/s/files/1/0434/2205/6600/files/blood_type_0_diet.pdf
- https://cdn.shopify.com/s/files/1/0431/8180/1629/files/tunodusewinizagemabat.pdf
- https://cdn.shopify.com/s/files/1/0429/1179/3315/files/67844434007.pdf
- https://cdn.shopify.com/s/files/1/0432/6971/8182/files/ninujav.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wawufomujemozinabewa.pdf
- https://cdn.shopify.com/s/files/1/0432/9717/7768/files/josov.pdf
- https://cdn.shopify.com/s/files/1/0434/3804/7384/files/28684383671.pdf
- https://cdn.shopify.com/s/files/1/0430/7025/9357/files/online_platform_business_plan.pdf
- https://cdn.shopify.com/s/files/1/0445/6172/7647/files/exalted_cheat_sheet.pdf
- https://cdn.shopify.com/s/files/1/0427/9749/8535/files/12834700968.pdf
- https://cdn.shopify.com/s/files/1/0438/0504/8989/files/discord_bot_tutorial_javascript.pdf
- https://cdn.shopify.com/s/files/1/0435/7881/8715/files/waside.pdf
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/toefl_practice_exams.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005cc5.bina8cc03ef80d9d6f935a7470f162c159145b9c3e402563dee379aede05985463a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CC5 | 5160 bytes |
font_01_sfnt_off00006e47.bin9da49b963cdc86e2d17e02a697544c188317efab454d5c0c6f1fede061f58a35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E47 | 10268 bytes |
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