Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdfdc7bf1e697aca…

MALICIOUS

PDF

43.4 KB Created: 2020-09-07 18:07:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92b1d98d5752f448cc8bcfc2d337226b SHA-1: 9352e8f90e14a1c8f075e5945e7f324e8fc75254 SHA-256: bdfdc7bf1e697acaf611798b451a86cb991e9ba18053fed96249a86608dd0582
120 Risk Score

Malware Insights

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

The PDF file contains a link that is flagged as a malicious redirector. The document body, though heavily corrupted, appears to contain text related to a 'Beneteau swift trawler 42 owner's manual', suggesting a lure to entice users to click the malicious link. The file also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm techniques used to obscure malicious activity.

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.club/wix?keyword=beneteau+swift+trawler+42+owner%2527+s+manual
    • https://static.usrfiles.com/ugd/3bf302_9e2972597b224e2d855c03df7aac3603.pdf
    • https://static.usrfiles.com/ugd/90d19e_0f228f98af8844c99297600fd8992542.pdf
    • https://static.usrfiles.com/ugd/921909_0c944cd146544af0a102a77de045b0df.pdf
    • https://static.usrfiles.com/ugd/9219f8_edcc28f26c1c4e9ca30567063a7f2d25.pdf
    • https://static.usrfiles.com/ugd/18f527_8ad1d2b641344d2699cad7cab273a105.pdf
    • https://cdn.shopify.com/s/files/1/0435/9222/0840/files/19911272630.pdf
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/bewinowivenulodosoxo.pdf
    • https://cdn.shopify.com/s/files/1/0435/1790/3008/files/rixekaseseki.pdf
    • https://cdn.shopify.com/s/files/1/0446/8919/5161/files/73343972360.pdf
    • https://cdn.shopify.com/s/files/1/0429/6366/5055/files/29300924608.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3288/files/categories_of_students_with_special_needs.pdf
    • https://cdn.shopify.com/s/files/1/0438/8588/7643/files/52900691365.pdf
    • https://cdn.shopify.com/s/files/1/0437/1926/2357/files/28933864493.pdf
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/download_from_issuu.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_off00006b2b.bin
055ca86f31fc9d2a011a17a882c2a2c36a54c4fb7fb8761b158e84812cc5bd4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2B 5308 bytes
font_01_sfnt_off00007d47.bin
9918d24db80bac1dd95ac6d42f12c96101bebcff0e484056c98496385cd3d8bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D47 10352 bytes

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