Malicious PDF — malware analysis report

Static analysis result for SHA-256 d75222377c9c293a…

MALICIOUS

PDF

39.2 KB Created: 2020-08-22 06:23:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dafa7b5e6059705291f22865ac45fe55 SHA-1: 50520c5f34b341fc9ec439139d27f67c8e756f79 SHA-256: d75222377c9c293af419f31d7b127dc0f309eb24398ac934419a808a6266f171
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, likely for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is presented as a download button. This suggests the document's primary purpose is to trick users into visiting a malicious site, likely for further exploitation or malware delivery.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=astroneer++pc+gratis
    • http://files.boonecountyhistorical.org/uploads/1/3/0/7/130738993/3176334.pdf
    • https://cdn.shopify.com/s/files/1/0429/9934/9407/files/sincerely_me_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/satiruzupepi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/ace_questionnaire_scoring.pdf
    • https://cdn.shopify.com/s/files/1/0434/6000/1957/files/52672538193.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1281/files/raladib.pdf
    • https://cdn.shopify.com/s/files/1/0435/9946/2558/files/36641858581.pdf
    • https://cdn.shopify.com/s/files/1/0433/9531/7911/files/60854648895.pdf
    • https://cdn.shopify.com/s/files/1/0439/9906/8318/files/gumovugojiperi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8806/0321/files/chinese_characters_stroke_order.pdf
    • https://cdn.shopify.com/s/files/1/0430/6875/2023/files/gogifosufirerorodo.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_off00005979.bin
1b36b7ab84fabe7a5a8ac3454ed075d75f035328873ddb46d940e8b4e846d2f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5979 5060 bytes
font_01_sfnt_off00006abe.bin
089160eeaec3109a2dd9b724c2624eec3f8bd1b07e5f9d653914bc81b97ca827		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABE 11164 bytes

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