Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2ff8c3e80b9b02c…

MALICIOUS

PDF

34.0 KB Created: 2020-08-02 06:09:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 869cb02e66e09ded072354da63eba042 SHA-1: 4ed6092719fd5c5552e741099ca25bff7e66b81c SHA-256: b2ff8c3e80b9b02c88b45fce4049f30bcd70017cdd8c4a9acd50b2f630acbbbc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a lure for "Pokemon gold download" and embeds a large number of links to external PDF files. One of these links, https://ttraff.ru/pify?keyword=pokemon+gold+download, points to a known malicious redirector. The document's structure and embedded links suggest a social engineering attack designed to lead users to malicious 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/pify?keyword=pokemon+gold+download
    • http://files.counselingfornewmoms.com/uploads/1/3/1/8/131872017/8711189.pdf
    • http://files.v23next.com/uploads/1/3/0/7/130775977/247098.pdf
    • http://files.kofc7402.org/uploads/1/3/1/4/131437445/nujuduwibu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5380/0859/files/tawobojez.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/64848709020.pdf
    • https://cdn.shopify.com/s/files/1/0437/4052/8792/files/the_heist_minecraft_map.pdf
    • https://cdn.shopify.com/s/files/1/0432/5838/0450/files/rijiwelom.pdf
    • https://cdn.shopify.com/s/files/1/0431/2779/9957/files/oar_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/9780/8285/files/tuzoxegen.pdf
    • https://cdn.shopify.com/s/files/1/0431/2632/5402/files/gemozefiwawogorojutis.pdf
    • https://cdn.shopify.com/s/files/1/0432/2046/7869/files/sufex.pdf
    • https://cdn.shopify.com/s/files/1/0434/1481/4885/files/65379091790.pdf
    • https://cdn.shopify.com/s/files/1/0437/1621/4936/files/19673500147.pdf
    • https://cdn.shopify.com/s/files/1/0451/0262/9016/files/baby_252brooms_252bpictures.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_off00004778.bin
0fd7bd9e117de6cbd8bb144763b86fd2721d56944b29fec51d3d08489c5dc7b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4778 5028 bytes
font_01_sfnt_off0000589b.bin
53f8996c7824de60fb4694e908bd52a62672ccd7a07b1ad8c2248b7e28586f9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x589B 10216 bytes

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