Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d0f6efcf6ca847c…

MALICIOUS

PDF

30.2 KB Created: 2020-08-19 05:52:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e971b0c4fb84a8237511d1e46f6f0e8 SHA-1: 74f976ec8be80e6e033a721f2fb14d33c94af8c9 SHA-256: 9d0f6efcf6ca847c5e973ab39a7189c7ea204eada0641861e6bb38be0c3f85a9
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF SEO link farm. One of these links, https://ttraff.com/pify?keyword=cuddl+duds+cotton+sheets, points to a known malicious redirector. This suggests the document's primary purpose is to lure users to malicious websites, likely for phishing or malware delivery.

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.com/pify?keyword=cuddl+duds+cotton+sheets
    • http://files.abortion-decriminalisation.org/uploads/1/3/1/6/131606392/4676423.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/allium_fistulosum.pdf
    • https://cdn.shopify.com/s/files/1/0430/7861/5189/files/vebakowibefos.pdf
    • https://cdn.shopify.com/s/files/1/0438/2756/0598/files/algorithm_design_manual_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9870/files/51434456537.pdf
    • https://cdn.shopify.com/s/files/1/0438/2323/5234/files/microsoft_word_for_mac.pdf
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/xapuvemoloxikesefuzalubi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2727/4645/files/94149325054.pdf
    • https://cdn.shopify.com/s/files/1/0437/1300/3674/files/assembly_language_programming_tutorial_point.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_off00003d09.bin
b6e05fb5562882d0358f3db6a7160b6a81bd4327e5d094ba77fdb8cf0f018acc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3D09 4628 bytes
font_01_sfnt_off00004cb7.bin
1e9dfeedbaf970c727edaa1173be1c7c6fb7a82037fda825461f89de3de10a88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CB7 9416 bytes

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