Malicious PDF — malware analysis report

Static analysis result for SHA-256 1afdceabf6c97295…

MALICIOUS

PDF

40.0 KB Created: 2020-08-31 18:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49cf08867808288a8b334117a0b9101e SHA-1: 5f03472a28822e8ff1cbfe0ca2f1c95ba8f727a3 SHA-256: 1afdceabf6c972953aae9955fd141f152ba8a37f142efb139438410cba5ac8cd
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=cartoon+video+english'. It also exhibits characteristics of a PDF link farm, with numerous embedded links. The document body, though partially obfuscated, contains the same lure text and URLs, suggesting the primary intent is to drive clicks to potentially malicious or deceptive content.

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=cartoon+video+english
    • https://static.usrfiles.com/ugd/dd4472_c932e242f2a349d5a6af56730eb6194a.pdf
    • https://static.usrfiles.com/ugd/7d21c0_1426cbbdc1844f4781015a314f930dd2.pdf
    • https://static.usrfiles.com/ugd/b8c837_f034b80f0d474d84949620da31371891.pdf
    • https://static.usrfiles.com/ugd/837d34_525515067c9e47d19adca6b03a62cd2b.pdf
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/56648938869.pdf
    • https://cdn.shopify.com/s/files/1/0431/5670/1348/files/76443900785.pdf
    • https://static.usrfiles.com/ugd/b8c837_473a548fe22b48ae945ec625af254ec2.pdf
    • https://static.usrfiles.com/ugd/b8c837_846036e69e6343b0b7201ca470aaed1e.pdf
    • https://cdn.shopify.com/s/files/1/0433/3689/2584/files/free_adobe_illustrator_clothing_templates.pdf
    • https://cdn.shopify.com/s/files/1/0437/6179/5230/files/xovodasorebe.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/assistant_commandant_question_paper.pdf
    • https://cdn.shopify.com/s/files/1/0434/3758/8646/files/pebejixozumumisejurim.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_off00006031.bin
b8d25cd8772244b5293416ce19602f014cd57ba24531c4715c8d9c3200b48fa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6031 5052 bytes
font_01_sfnt_off0000715b.bin
07479e7c6e8fb88fa3601ec31b526199e5a534c7e4e58126a35b5c197e547903		 pdf-font-stream PDF embedded font (sfnt) at offset 0x715B 10024 bytes

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