Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1396eb5a408e465…

MALICIOUS

PDF

49.7 KB Created: 2020-08-19 13:18:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b4f4d167f1b8ec1989b6dbda109e3251 SHA-1: 2692f278e75acd28e985b2c8164bc360e2fbbe40 SHA-256: e1396eb5a408e46540b3f06d7d3668bb82135080c18fd8d76bd014e1988b4189
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged as malicious by multiple heuristics, including a critical finding for a malicious redirector link and a PDF link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=movies++tamilrockers+2019, which is part of a larger set of links pointing to various PDF files, many hosted on Shopify. The document body contains obfuscated text and the identified malicious URL, suggesting an attempt to lure users to harmful content through SEO manipulation or phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • Embedded URL info EMBEDDED_URL
    One 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=movies++tamilrockers+2019
    • http://files.kerrybeckerconcrete.com/uploads/1/3/1/8/131858481/6750004.pdf
    • https://cdn.shopify.com/s/files/1/0428/0870/5187/files/77495812375.pdf
    • https://cdn.shopify.com/s/files/1/0429/6091/2537/files/59439624088.pdf
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/procesos_psicologicos_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0433/5671/7206/files/87855755911.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0798/files/www._bteb._gov._bd_result_2020pdf.pdf
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/7928425692.pdf
    • https://cdn.shopify.com/s/files/1/0434/4610/8312/files/peaky_blinders_season_5_ep_1.pdf
    • https://cdn.shopify.com/s/files/1/0435/6449/9105/files/turafenonakisuni.pdf
    • https://cdn.shopify.com/s/files/1/0428/4225/9612/files/gevow.pdf
    • https://cdn.shopify.com/s/files/1/0428/5857/8086/files/liremalaneligomiri.pdf
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/17343969291.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.

FilenameKindSourceSize
font_00_sfnt_off00007903.bin
ff14a6f383b3634cc7a08dfcc4ecc6adc33a5934c8dc8898d60e93584c1bfadb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7903 5556 bytes
font_01_sfnt_off00008bda.bin
73983ccd477f0e4c07634362c0f9f13a23cea415a26bff37f7f125d59a681190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BDA 1936 bytes
font_02_sfnt_off0000951d.bin
9f7cf33d72a6c7ffad86704dad4296489b359bc062872f8f4ca265b18db79b09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x951D 10848 bytes

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