Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca17d1bafb024af2…

MALICIOUS

PDF

46.7 KB Created: 2020-08-20 00:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 678bbbc135cd53cd2fdd5af3f0d140c0 SHA-1: 45cad58fc6224e24e835f4929d053d5a43a18beb SHA-256: ca17d1bafb024af24d7b7ec839eacac1feb52ba6f01bd458a97185887c1f0f91
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to direct users to malicious sites. One of these links points to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, also contains this URL and references 'Capitalism 2 lab', suggesting a lure. The presence of numerous shopify.com links indicates a link farm strategy.

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=capitalism+2+lab
    • http://files.rockport-pewter.com/uploads/1/3/2/6/132682124/bojaxoz_ronopibipil.pdf
    • https://cdn.shopify.com/s/files/1/0432/3003/6123/files/angularjs_viewer_directive.pdf
    • https://cdn.shopify.com/s/files/1/0438/0708/0610/files/16441053221.pdf
    • https://cdn.shopify.com/s/files/1/0437/4921/2311/files/razikenajebato.pdf
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/paxere.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/mibugejezuvosobibi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/battlestar_galactica_boomer.pdf
    • https://cdn.shopify.com/s/files/1/0437/5887/8872/files/50848115858.pdf
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/38663691973.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/holiday_gift_guide_for_her_2019.pdf
    • https://cdn.shopify.com/s/files/1/0429/4764/1510/files/2199171992.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_off00007a2c.bin
873757779bec680bcca5ff13f93006148f8875632fe6bb4a8f6863b54be6653e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 5048 bytes
font_01_sfnt_off00008b40.bin
2b90861ead3883a9d8cb6aa5fb279ed5ddf0e4b9ef90ee90e8773b1e77cdabb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B40 10360 bytes

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