Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6d01db096a1c246…

MALICIOUS

PDF

40.3 KB Created: 2020-08-01 20:45:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 735a86f03689e9aceacf9376a2b9c25c SHA-1: ed3255502d92ff0c92798b37a73e185948388bd0 SHA-256: d6d01db096a1c2468b844af81295c3a1f2b1a33a163962c1b77a85516cae73df
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=children+santrock+pdf'. Additionally, it exhibits a PDF link farm behavior, embedding numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent. The primary goal appears to be directing users to the malicious ttraff.com domain.

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=children+santrock+pdf
    • http://files.beautyatthecroft.com/uploads/1/3/0/8/130814288/6501321.pdf
    • http://files.adagencyvaluations.net/uploads/1/3/1/8/131871658/4847181.pdf
    • http://files.chrisheidt.net/uploads/1/3/1/6/131607131/1989573.pdf
    • https://cdn.shopify.com/s/files/1/0429/4869/0076/files/89384503271.pdf
    • https://cdn.shopify.com/s/files/1/0432/4543/7083/files/37320644953.pdf
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/78008137094.pdf
    • https://cdn.shopify.com/s/files/1/0431/6990/6852/files/jivuxabibamerezijomegeku.pdf
    • https://cdn.shopify.com/s/files/1/0431/0938/4343/files/papiv.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/ti-_36x_pro_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/8562/6528/files/33878936005.pdf
    • https://cdn.shopify.com/s/files/1/0438/1766/4674/files/32445766990.pdf
    • https://cdn.shopify.com/s/files/1/0432/9829/1870/files/11207261638.pdf
    • https://cdn.shopify.com/s/files/1/0435/4772/1892/files/31660281795.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.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_off0000607c.bin
f7fa3451b27cfbf9ba15887fd15ef34661c65db462992d44d72c1e24428c6bee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x607C 5212 bytes
font_01_sfnt_off0000722a.bin
50aa05e1622bae546b06f6297c7c0785f84d3e834062b267b9a81c9b40983fa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x722A 10156 bytes

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