MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains references to 'electrical engineering by bl theraja pdf' and the malicious URL, suggesting a lure to a malicious site. The PDF also exhibits a link farm behavior, pointing to numerous external PDFs, likely to manipulate search engine results.
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=electrical+engineering+by+bl+theraja+pdf
- http://files.womensbalancehealth.com/uploads/1/3/0/7/130739212/1b7e5fa52.pdf
- http://files.manishaanantharaman.com/uploads/1/3/1/4/131483154/viniwa.pdf
- http://files.lorettovolunteers.org/uploads/1/3/1/3/131379382/3773978.pdf
- https://cdn.shopify.com/s/files/1/0435/2330/9727/files/preposition_of_place_worksheets_for_grade_4.pdf
- https://cdn.shopify.com/s/files/1/0429/4233/3084/files/bipososurinozefeluris.pdf
- https://cdn.shopify.com/s/files/1/0431/3173/2125/files/46201270361.pdf
- https://cdn.shopify.com/s/files/1/0431/6112/5013/files/22502847547.pdf
- https://cdn.shopify.com/s/files/1/0433/7441/1926/files/59637783782.pdf
- https://cdn.shopify.com/s/files/1/0433/5425/9606/files/88559478940.pdf
- https://cdn.shopify.com/s/files/1/0427/7541/2902/files/sbi_bank_exam_books_free_download.pdf
- https://cdn.shopify.com/s/files/1/0427/5837/3542/files/lipojimovori.pdf
- https://cdn.shopify.com/s/files/1/0431/2452/3170/files/new_holland_parts_lookup.pdf
- https://cdn.shopify.com/s/files/1/0428/1047/4663/files/denotixabetirebanota.pdf
- https://cdn.shopify.com/s/files/1/0437/0300/9430/files/nebumomore.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_off00006a3e.binb6b5263157177e8aa75e2c0a1c556376d649c515567ef73ddd8bf4b99be38442 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A3E | 5516 bytes |
font_01_sfnt_off00007cfc.bin89454d8ece1be00d2333aac76955f46ed17c4d141322e635bf27f42efb43e54e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CFC | 2116 bytes |
font_02_sfnt_off000086c8.bin64fb4600d61aa4a7780964105a9a6ba7b58bb7816de98a6a8a7a4822703c022d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86C8 | 14960 bytes |
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