Malicious PDF — malware analysis report

Static analysis result for SHA-256 baa0c06df13d204a…

MALICIOUS

PDF

33.5 KB Created: 2020-08-01 08:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48de87dd3dd4a0080110ec194a02e6e7 SHA-1: 9c5e4af57c61b211217b76586197a101e5519e67 SHA-256: baa0c06df13d204a370191cef929196d4cd12228c52ce8c8a3b38fd82c8cd0ae
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Haynes small engine repair manual pdf' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The primary attack pattern involves a link farm designed to redirect users to malicious infrastructure.

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=haynes+small+engine+repair+manual+pdf
    • http://files.in2ithealth.info/uploads/1/3/0/9/130969535/1792a4748dfdf.pdf
    • http://files.diocesanchurchdevelopment.org/uploads/1/3/1/6/131606360/fagafumob-xuxumibiwodare-dizofet.pdf
    • http://files.southernstylestudioandmore.com/uploads/1/3/0/7/130738914/9277655.pdf
    • http://files.the-mad-scientist.net/uploads/1/3/1/4/131453823/5246597.pdf
    • http://files.mtnexperiences.co.uk/uploads/1/3/1/3/131381540/6633119.pdf
    • https://cdn.shopify.com/s/files/1/0430/7612/4821/files/vorovojojevimi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/81378437656.pdf
    • https://cdn.shopify.com/s/files/1/0433/1244/7652/files/61117145067.pdf
    • https://cdn.shopify.com/s/files/1/0434/1347/1384/files/gowonojavaki.pdf
    • https://cdn.shopify.com/s/files/1/0438/9008/1960/files/64230723559.pdf
    • https://cdn.shopify.com/s/files/1/0428/1047/4663/files/24483418791.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/zunerovi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7175/0823/files/71672517254.pdf
    • https://cdn.shopify.com/s/files/1/0439/5037/5070/files/doxopevetujo.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_off00004508.bin
af0e58ca5c25691c0467cc741680896ba297e4c9fb27f2ca9180681641e8d9db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4508 5424 bytes
font_01_sfnt_off0000576a.bin
e13e1639f2c2534f64fd2c48b19d631808cf2d97087d4a2254b715e29ec1f97a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x576A 9992 bytes

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