Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2df7a08759fe0a6…

MALICIOUS

PDF

40.4 KB Created: 2020-08-08 10:59:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 456bbb8267abf338585e9c8e13365c2c SHA-1: f19e11986baff852f55b6230f4a8e3e4ce8b0c13 SHA-256: e2df7a08759fe0a6adaae8fa5415a3417203a25bed6d5e40d5c7be1584db4bc8
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 links, many of which point to Shopify domains hosting other PDFs, but one critical link redirects to a known malicious domain (ttraff.cc). This indicates a link farm or redirection attack designed to lead users to malicious content. The document body, though heavily obfuscated, contains the URL that triggers the redirection, suggesting a lure to download further 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.cc/pify?keyword=ansys+topology+optimization+tutorial+pdf
    • http://files.kewosteopath.co.uk/uploads/1/3/1/4/131453111/womuma.pdf
    • http://files.trade-city-award.org/uploads/1/3/2/6/132695280/92b29c55e9bc.pdf
    • http://files.dwolf.eu/uploads/1/3/1/8/131856907/5155969.pdf
    • http://files.rpnsottawa.com/uploads/1/3/0/9/130969763/3483105.pdf
    • https://cdn.shopify.com/s/files/1/0433/4944/2713/files/wevexovutituxifufefo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3536/1442/files/zolodawisefuzujowelipuwo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/17901063666.pdf
    • https://cdn.shopify.com/s/files/1/0428/8482/5247/files/collateral_agreement_sample.pdf
    • https://cdn.shopify.com/s/files/1/0434/3857/1670/files/valedixuj.pdf
    • https://cdn.shopify.com/s/files/1/0440/8911/4789/files/mean_median_mode_in_statistics.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/vobuwawun.pdf
    • https://cdn.shopify.com/s/files/1/0430/8788/8545/files/two_sum_leetcode.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gotisirifiwixi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5630/0186/files/49936341338.pdf
    • https://cdn.shopify.com/s/files/1/0430/8189/1989/files/39455983743.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_off00005f75.bin
0f3b2e20ece355303d7aaf5b5fc81c7f1a49b08cd0b68ed7cbcdf3544b2e5125		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F75 5500 bytes
font_01_sfnt_off0000722c.bin
838e0875231d2bd3aa5a35f9f940143e73a16036a1df0e1a0287579c009fb73f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x722C 10116 bytes

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