Malicious PDF — malware analysis report

Static analysis result for SHA-256 e86c37e615c43322…

MALICIOUS

PDF

45.7 KB Created: 2020-07-29 16:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b58d8ab02faaad8519bc8a30f355e80 SHA-1: b00918089fdd900eb3f9db85115ed6e83d6e42b4 SHA-256: e86c37e615c4332272b39d8233c3fa913400e0f8ab7c77bfb2dd2b640fbe0af5
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm or SEO spam campaign. One of the primary links, 'https://ttraff.ru/pify?keyword=anatomy+and+functional+areas+of+the+brain+pdf', is identified as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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=anatomy+and+functional+areas+of+the+brain+pdf
    • http://files.elliekilpatrick.com/uploads/1/3/0/8/130813645/50f900.pdf
    • http://files.adeliaburke.com/uploads/1/3/1/4/131437531/9232300.pdf
    • http://files.spotlightcoachingdc.com/uploads/1/3/2/7/132740917/vodumafusewa.pdf
    • http://files.milanibowhunting.com/uploads/1/3/1/4/131437394/dupeburekomavapugo.pdf
    • http://files.justicefordrew.com/uploads/1/3/1/3/131384709/fowoxitizuwobudu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/guponimobekoguraxiga.pdf
    • https://cdn.shopify.com/s/files/1/0429/1608/5923/files/kinukemimivikoroni.pdf
    • https://cdn.shopify.com/s/files/1/0438/1173/3664/files/19517157720.pdf
    • https://cdn.shopify.com/s/files/1/0437/1985/2187/files/piwoku.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/jukezotejatinofilunusego.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/tanolamufituwupem.pdf
    • https://cdn.shopify.com/s/files/1/0429/2070/6204/files/mupapuluzov.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5271/files/tedezijorovomipudepen.pdf
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/31963788633.pdf
    • https://cdn.shopify.com/s/files/1/0436/3023/1712/files/muwiririrurigeriwu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/sadilaxi.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/
    • https://cdn.shopify.com/s/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000755f.bin
8aaa04f552ff9ed51321afe6d1bd812c6c4d0f5e407bcc7260059063ef87ba48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x755F 5508 bytes
font_01_sfnt_off000087e4.bin
65dcf739a93bfdbd2609b20c03714cc5e500d22f322f06d7c3af26ac3fca68af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87E4 9872 bytes

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