Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf6cc8c2fa3f837a…

MALICIOUS

PDF

39.2 KB Created: 2020-09-01 17:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 421b2b296bfc0bcaa4b657c50a39adad SHA-1: a33c5cf2261ef5a1b5e09299eaeb0cf1facd36f1 SHA-256: cf6cc8c2fa3f837afceac9f968779248258a469d0625bf8e03f15889b0530c7c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=businessman+3+movie'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the first being 'https://cdn.shopify.com/s/files/1/0430/3680/3233/files/jiteriguvapebitetarozeduj.pdf'. The document body, though partially corrupted, includes the movie title 'Businessman 3 movie', suggesting a lure to entice users to click the malicious redirector.

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/pify?keyword=businessman+3+movie
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/jiteriguvapebitetarozeduj.pdf
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/55731107489.pdf
    • https://cdn.shopify.com/s/files/1/0431/8347/2802/files/lodezirinopepopunexip.pdf
    • https://cdn.shopify.com/s/files/1/0439/1400/2587/files/entrepreneurship_development_book_by_rajeev_roy.pdf
    • https://cdn.shopify.com/s/files/1/0429/6540/1753/files/lekelinavopu.pdf
    • https://cdn.shopify.com/s/files/1/0440/9786/3832/files/metivexer.pdf
    • https://cdn.shopify.com/s/files/1/0434/0000/3749/files/9238489204.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7005/files/58054145445.pdf
    • https://cdn.shopify.com/s/files/1/0437/5108/0087/files/apache_nifi_1._7.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5916/files/4961559925.pdf
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/attestation_letter.pdf
    • https://static.usrfiles.com/ugd/d1d005_e14a76f312d04b71a7f394817e5ee1f1.pdf
    • https://static.usrfiles.com/ugd/e745be_c7401b156d674667abd983b1b195bbaf.pdf
    • https://static.usrfiles.com/ugd/38bf1f_aa979b0561604de18124a5037cb674a2.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_off00005cb2.bin
69d0a5adb1a28257c0e7fbe3af8b8d210258e8a4eaf90bed3931b2b7e4e62ce3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB2 4976 bytes
font_01_sfnt_off00006d94.bin
74cd3844219bdb396df012d6a85b8b4b5e7fe36650beb94170069c9c6fe9c9c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D94 10212 bytes

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