Malicious PDF — malware analysis report

Static analysis result for SHA-256 3290e93a653e29d0…

MALICIOUS

PDF

40.8 KB Created: 2020-08-22 10:55:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91b81fdcbc20f35026920128fe8534d1 SHA-1: a8664cbb99a6de82c37fffa93ec4b3b4285b0a43 SHA-256: 3290e93a653e29d0aef62b627570dd4159e8c2ca4ff10b8ab7b5a6a05eb9f08e
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised with a 'Harry Potter' keyword. It also exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on cdn.shopify.com. The primary malicious link is likely intended to lead the user to a phishing or scam page. No scripts were extracted, but the PDF structure and embedded links strongly suggest a social engineering attack.

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.com/pify?keyword=harry+potter+1st+movie
    • http://puruzora.bathcycletours.com/uploads/1/3/1/3/131381720/sivixaginodoj-favona-jomirerisek.pdf
    • http://files.13ththeatreco.co.uk/uploads/1/3/0/9/130969053/3358463.pdf
    • https://cdn.shopify.com/s/files/1/0443/1613/1484/files/designing_brand_identity_alina_wheeler_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/podilebubise.pdf
    • https://cdn.shopify.com/s/files/1/0439/3621/9291/files/66468416779.pdf
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/suxejelamenosod.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/arreglos_bidimensionales_java.pdf
    • https://cdn.shopify.com/s/files/1/0428/4570/0262/files/dell_latitude_e6400_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/7185/5002/files/chinese_movies_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/birthday_cake_images_free_pictures.pdf
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/58192070180.pdf
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/96649441888.pdf
    • https://cdn.shopify.com/s/files/1/0437/0766/2490/files/beduxo.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_off0000637f.bin
f223fa149829cd555bf735f9297fb6fa7c99f966e5a8c081d58626122e766bbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x637F 5108 bytes
font_01_sfnt_off000074d7.bin
fac391d5e5392f5a2212a9db36d316fb0e6e0e6a8029c8398ea0f37530523097		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74D7 9928 bytes

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