Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1d2a65bcab1e868…

MALICIOUS

PDF

41.0 KB Created: 2020-08-21 18:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f71a9bbf6fd333b9a95fccdb291f0eb SHA-1: 31ff89f617ac1d74e6a7aeb02f8c47fca6d8e9ee SHA-256: a1d2a65bcab1e868ac9566be716eb9451cbcb9a2986f66e8feaeabbd8752be4f
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to manipulate search engine results, directing users to a malicious redirector. The primary malicious URL is https://ttraff.ru/pify?keyword=powerpoint+free+templates+technology, which is likely used to distribute further malware or phishing content. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF files hosted on Shopify, suggesting a content-luring or SEO poisoning tactic.

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=powerpoint+free+templates+technology
    • http://files.icookyoudinner.com/uploads/1/3/0/7/130775607/vigew-bujawedoforo.pdf
    • http://files.mmedejong.com/uploads/1/3/2/7/132710756/ad16b7d.pdf
    • https://cdn.shopify.com/s/files/1/0435/8746/9471/files/22437273359.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/suikoden_2_rom.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6068/files/durebepefolisikiza.pdf
    • https://cdn.shopify.com/s/files/1/0431/9212/3556/files/21157451877.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/32905673970.pdf
    • https://cdn.shopify.com/s/files/1/0429/2752/1948/files/69657151137.pdf
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/melagomunive.pdf
    • https://cdn.shopify.com/s/files/1/0431/7465/8197/files/87891103688.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005609.bin
25f85e93ee5a753f53647e103f73703fc7a73464a00ef4803475875f49263235		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5609 5412 bytes
font_01_sfnt_off00006846.bin
77b978dceeb3b8c6d471edb1a7efb17f5a77f2e780b0787a3a15d510a3836be3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6846 9652 bytes
font_02_sfnt_off00008946.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8946 4324 bytes

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