MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious due to its extensive use of link farms, a common technique for SEO poisoning and redirecting users to malicious sites. The primary malicious URL identified is https://ttraff.ru/wix?keyword=bluestacks+3+pc++windows+7, which is flagged as a known malicious redirector. The document body contains obfuscated text and references to the malicious URL, further supporting the attack pattern. 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/wix?keyword=bluestacks+3+pc++windows+7
- https://static.usrfiles.com/ugd/e23fbb_dd7a9489cdf34a7fbf393b900bf33abe.pdf
- https://static.usrfiles.com/ugd/8acad3_5fc14b4df9b5458a8ac551ce18b1a622.pdf
- https://static.usrfiles.com/ugd/67f5f7_75d953b004b74372a83d8ef2950ce085.pdf
- https://cdn.shopify.com/s/files/1/0431/3301/0081/files/bmp_test_full_form.pdf
- https://cdn.shopify.com/s/files/1/0437/3685/8776/files/zotofil.pdf
- https://cdn.shopify.com/s/files/1/0463/3110/1345/files/zivisowisax.pdf
- https://cdn.shopify.com/s/files/1/0436/6568/6681/files/28347418080.pdf
- https://cdn.shopify.com/s/files/1/0437/5543/8241/files/apc_smart_ups_c_3000va_lcd_230v.pdf
- https://cdn.shopify.com/s/files/1/0441/2211/2152/files/fundamentals_of_computer_operating_system.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52244446143.pdf
- https://cdn.shopify.com/s/files/1/0433/4108/6888/files/gumusozilejipemegasaz.pdf
- https://static.usrfiles.com/ugd/f80014_8b82bd9867304a79b2dfdbf1c9de9c87.pdf
- https://static.usrfiles.com/ugd/b8c837_0f6efb5891d44ca0b4e97c0a94d21fcd.pdf
- https://static.usrfiles.com/ugd/15d534_068885d39f2249e0bf92e6e684770dd6.pdf
- https://static.usrfiles.com/ugd/3aee12_6ac0fbe072604298a10928f6c311d022.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_off000076a4.bin628f68256a239176fbb306bf77b326bc04430aeb501a76503a78330f233787ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76A4 | 5420 bytes |
font_01_sfnt_off00008941.bin800486025edac9c17e7e141c3a63c03d3192b6a3130805345c45799580e8a6ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8941 | 9940 bytes |
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