Malicious PDF — malware analysis report

Static analysis result for SHA-256 e112382b0067414a…

MALICIOUS

PDF

49.6 KB Created: 2020-08-09 21:44:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 704b54abb7138453966e4cf8d883cb5e SHA-1: 5bd7c474d17ee7c693c4ea5d4d032f15401c66bc SHA-256: e112382b0067414a2d201f38b4ce582e8976fa214270a29c49ed697f758d2953
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, including one to a known malicious redirector at 'ttraff.com'. This redirector is used to obscure the final destination, which is likely malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=assumptions+of+economics+pdf', suggesting a lure related to economics documents. The presence of multiple external links, many hosted on Shopify, indicates a link farm strategy to improve search engine visibility for malicious content.

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=assumptions+of+economics+pdf
    • http://takenox.alifoxtransformations.com/uploads/1/3/1/1/131163590/gimazolezepi-rirudova-sobedebisopezi-mabupof.pdf
    • http://files.cornjournal.com/uploads/1/3/0/9/130969408/miwawolokilol.pdf
    • http://files.allthatglitterscompany.com/uploads/1/3/0/7/130739789/634e7e.pdf
    • https://cdn.shopify.com/s/files/1/0433/5376/8095/files/pigimuminewadi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/11653170801.pdf
    • https://cdn.shopify.com/s/files/1/0431/5319/5165/files/32904822864.pdf
    • https://cdn.shopify.com/s/files/1/0431/5293/3020/files/fibenuto.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28603075132.pdf
    • https://cdn.shopify.com/s/files/1/0431/3484/5079/files/17193499301.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/canzonetta_sull_aria.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nozawilod.pdf
    • https://cdn.shopify.com/s/files/1/0441/1670/5432/files/why_is_my_text_red_in_discord.pdf
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/jakefidodijaru.pdf
    • https://cdn.shopify.com/s/files/1/0435/3314/0127/files/haskell_binary_tree.pdf
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/66486339707.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_off000085be.bin
4cc8cffe84696a0aed2b37cee2aad5cc24fa84875d36d568890ac3263cd129fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85BE 4952 bytes
font_01_sfnt_off00009693.bin
c7f969afc39ccc0d76567a63a4db6b94475233771110ad7a6158cdd8773f3e98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9693 10156 bytes

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