Malicious PDF — malware analysis report

Static analysis result for SHA-256 22553367202a1457…

MALICIOUS

PDF

33.9 KB Created: 2020-08-04 06:48:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a0da65ecf6b233c6ad5f633de69be4a SHA-1: eb4281b247b2c7fd128366d8f8ebe2787036ea66 SHA-256: 22553367202a1457cb1378631680ebec7b2c7a345d008c631bd34c451fd05f56
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Economist magazine pdf free' and the malicious URL. This suggests the PDF is designed to trick users into clicking the malicious link, likely leading to further malware download or phishing. No scripts were extracted from this sample.

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.cc/pify?keyword=economist+magazine+pdf+free
    • http://files.ibmypphe.com/uploads/1/3/1/3/131379789/sovatipeleva.pdf
    • http://files.patriksoderstam.com/uploads/1/3/1/4/131453733/kazeleje.pdf
    • http://files.supernaturalvibrations.com/uploads/1/3/1/4/131453595/wutunopi.pdf
    • http://files.progressiveair.org/uploads/1/3/0/8/130813055/798f944859bf.pdf
    • http://files.visualsbyjacqui.com/uploads/1/3/0/7/130738562/mugerokinasi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/sawuvatosufekewal.pdf
    • https://cdn.shopify.com/s/files/1/0428/3406/7615/files/887250539.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/tyler1_draven_build.pdf
    • https://cdn.shopify.com/s/files/1/0429/2847/2220/files/65680388460.pdf
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/340474043.pdf
    • https://cdn.shopify.com/s/files/1/0435/8563/4463/files/lafoxomav.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/bimekigonej.pdf
    • https://cdn.shopify.com/s/files/1/0433/9764/4449/files/bumufuwi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/kuvemamopubexuwuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/8843/7655/files/75277651446.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/72841201062.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.

FilenameKindSourceSize
font_00_sfnt_off0000491e.bin
6ce92a04d4b7a8512038f832f9a8c5398dedc34f1517c897944981b327690f90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x491E 5452 bytes
font_01_sfnt_off00005ba1.bin
c567cda9e528f5c25b4b5a55364ef40ae8ad8a02fdef1935c7b80e9f6d10bb9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA1 9112 bytes

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