Malicious PDF — malware analysis report

Static analysis result for SHA-256 9004e4bf7d78a872…

MALICIOUS

PDF

54.8 KB Created: 2020-08-31 05:59:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77c1265c07b351865e8f55fc9d0726e7 SHA-1: 7c1b1e7a94382c6c109ea4c17179cc371c424da8 SHA-256: 9004e4bf7d78a87228b68063d1d297514fb838ba0a25e88fe773d41e4f8e3ccd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link that is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Final Fantasy 7 official strategy guide' and the malicious URL. This suggests a social engineering lure to trick the user into clicking the link, which then leads to malicious infrastructure.

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/wix?keyword=final+fantasy+7+official+strategy+guide
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/59979083646.pdf
    • https://cdn.shopify.com/s/files/1/0430/5177/8202/files/49500448650.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/jokejepirijen.pdf
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/comprension_lectora_dibujos.pdf
    • https://cdn.shopify.com/s/files/1/0452/9078/2881/files/3d_converter_for_autodesk_navisworks.pdf
    • https://static.usrfiles.com/ugd/b0b521_c2ad5eeedd044103a2f062ddf9228d23.pdf
    • https://cdn.shopify.com/s/files/1/0428/9078/9020/files/xexaxodekoruwevasalin.pdf
    • https://cdn.shopify.com/s/files/1/0437/9593/9488/files/white_background_images_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/8526/7097/files/ninoretinomujunivedoti.pdf
    • https://static.usrfiles.com/ugd/685707_fe9557920d134d55b715cc6363eaca41.pdf
    • https://static.usrfiles.com/ugd/b8c837_a465c763f46f43d2b5f850c8ef7f4c17.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4eefa4853c540799ee62afca6ae4c9f.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_off00009809.bin
aafb36fe1187f6a836dcda03eed786777973b6a2138186c96046e02f0cf2fb1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9809 5328 bytes
font_01_sfnt_off0000aa3c.bin
ff381e9cc8737a8f82ac9998623262482f9400e0fde5c09089a47d789542f4fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA3C 10492 bytes

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