Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3212782e5194a15…

MALICIOUS

PDF

41.9 KB Created: 2020-08-04 06:11:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54c0033ec34802bea99f8f264e185f18 SHA-1: 0b777d363de857a407fcb1a741829a5d6f037789 SHA-256: e3212782e5194a157af97b6d4e4b70b24fe00cac7d2530c66de2368a60c1f005
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link directs to a malicious redirector at 'ttraff.cc'. This redirector is disguised as a 'business model canvas explanation pdf' and likely leads to further malicious content or malware. The PDF itself is generated by wkhtmltopdf, suggesting it was programmatically created to host these links.

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=business+model+canvas+explanation+pdf
    • http://files.americanbeachtour.com/uploads/1/3/1/4/131453252/6aa4d.pdf
    • http://files.eyeformation.net/uploads/1/3/0/8/130814674/8d728d03cd24.pdf
    • http://files.shopatpky.com/uploads/1/3/1/8/131856166/3508358.pdf
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/98678864630.pdf
    • https://cdn.shopify.com/s/files/1/0435/7508/3171/files/5193603824.pdf
    • https://cdn.shopify.com/s/files/1/0431/8383/3249/files/82567403689.pdf
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/1711791867.pdf
    • https://cdn.shopify.com/s/files/1/0435/0876/0735/files/pisarul.pdf
    • https://cdn.shopify.com/s/files/1/0434/0976/8600/files/26149354755.pdf
    • https://cdn.shopify.com/s/files/1/0449/7158/9800/files/resort_design_concept_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/wegerogurogizod.pdf
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/votizonuj.pdf
    • https://cdn.shopify.com/s/files/1/0429/8738/9087/files/data_structure_and_algorithms_dsa_tutorial_tutorialspoint.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_off000061f7.bin
284f3e13df6cd80ea8c18ea57e308659c456d1ac24e1bf4a3e5f89651a4ca55b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61F7 5384 bytes
font_01_sfnt_off00007445.bin
2050cf81b4a321eacd8963858d85692e057c5f48c9b0839e2e51048e8db31fbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7445 11900 bytes

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