MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as "Gel electrophoresis virtual lab answers". The document also functions as a link farm, pointing to numerous other PDF files hosted on various domains. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector confirms the intent to lead the user to harmful content.
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=gel+electrophoresis+virtual+lab+answers
- http://files.excelpowerusercourse.com/uploads/1/3/1/8/131856358/7518440.pdf
- http://files.hahnselectrical.com/uploads/1/3/1/4/131454373/4286216.pdf
- http://files.mcrudin.com/uploads/1/3/1/3/131398187/bisemurezo-jumixol-rumavaf-zidatoluzipipub.pdf
- http://suvabuxab.coggeshallburr.com/uploads/1/3/1/3/131384281/satevebulizet-totot-lixut-bugasutanukim.pdf
- http://files.rrim.info/uploads/1/3/0/7/130739021/lepisabijeji-masatobimi.pdf
- https://cdn.shopify.com/s/files/1/0437/1424/8857/files/zutegirabelej.pdf
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/65384124174.pdf
- https://cdn.shopify.com/s/files/1/0430/9896/4117/files/87725578740.pdf
- https://cdn.shopify.com/s/files/1/0431/2553/8980/files/79283891616.pdf
- https://cdn.shopify.com/s/files/1/0437/7441/0910/files/tedokigikok.pdf
- https://cdn.shopify.com/s/files/1/0432/1571/6519/files/60886014407.pdf
- https://cdn.shopify.com/s/files/1/0428/7853/3788/files/jugoresolobanew.pdf
- https://cdn.shopify.com/s/files/1/0449/8430/3775/files/80719616148.pdf
- https://cdn.shopify.com/s/files/1/0432/6768/6558/files/wordly_wise_3000_book_8_answer_key_download.pdf
- https://cdn.shopify.com/s/files/1/0431/2779/9969/files/28088077336.pdf
- https://cdn.shopify.com/s/files/1/0434/4306/0901/files/50354677953.pdf
- https://cdn.shopify.com/s/files/1/0428/5802/1027/files/mafumukeg.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_off00006346.bin3ceaec91e14862c31b6556ace62b4f581ebbbe9d91c0ce0311108d1788d856c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6346 | 5344 bytes |
font_01_sfnt_off00007581.bin80b2a4286e57c12bc4f15c184f76172ae3231d1b4954e2bc2597d41b992812e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7581 | 10256 bytes |
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