Malicious PDF — malware analysis report

Static analysis result for SHA-256 8884cbdb3bb4aa24…

MALICIOUS

PDF

40.4 KB Created: 2020-08-29 18:49:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90f14b09023c325d0d3d12c3a2d165f1 SHA-1: 8e3cf185f0d3450307215721cf9b4fe714a23cab SHA-256: 8884cbdb3bb4aa2405427ba44bbed76fafd4a38188796a4d501e2e3325a04a11
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, a common tactic for SEO poisoning or redirecting users to malicious sites. One prominent link, 'https://ttraff.cc/wix?keyword=scooby+doo+%25C3%25A7izgi+filmi+izle', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to "Scooby Doo" cartoons, aiming to entice clicks.

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/wix?keyword=scooby+doo+%25C3%25A7izgi+filmi+izle
    • https://static.usrfiles.com/ugd/b8c837_854749b94cf34baca9ab932ae6fd90a9.pdf
    • https://static.usrfiles.com/ugd/b8c837_a59e9e6d1281412fb81c0eaa903cf197.pdf
    • https://static.usrfiles.com/ugd/b8c837_675826b6c0e14a5c887689b8dad0a5f5.pdf
    • https://static.usrfiles.com/ugd/d94ae5_c962b5d79fa149e2a6a2a9a36042c3dd.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0418/files/fegitanejedepe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
    • https://cdn.shopify.com/s/files/1/0433/3089/6026/files/fonitolotefumupogalaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/waminorilov.pdf
    • https://static.usrfiles.com/ugd/a107db_fe77742d56104c36847cd46a8c45056c.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba6f6735e8ce48008d1b9f1ed62e32b4.pdf
    • https://cdn.shopify.com/s/files/1/0445/4033/0148/files/cardone_capital_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/9415/5157/files/air_miles_card_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0438/7920/2984/files/felofisi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3466/4347/files/33771716677.pdf
    • https://cdn.shopify.com/s/files/1/0434/1032/5671/files/research_ethical_principles.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_off00005e39.bin
026c0b271b1c014727c5ff45cce7877e71c33f23fa211f8512efc55aad57fbfc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E39 5436 bytes
font_01_sfnt_off0000706d.bin
5430812293305f879647d1a532fb5d97f34adf639a0cfe6c2523b1c6f71dc1d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x706D 10712 bytes

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