Malicious PDF — malware analysis report

Static analysis result for SHA-256 facaec997e69ff75…

MALICIOUS

PDF

113.5 KB Created: 2020-08-11 14:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 448b45afb1e6fb9cec7e6f3b1e112452 SHA-1: 91142babb1328598f929e21baef05fe0e60bbb30 SHA-256: facaec997e69ff75d6397b1cda22e5eb68c1447c2373b2c538e8cfed0c65a6eb
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. The document body, though heavily obfuscated, contains the URL that is also present in the heuristic firing. This suggests the PDF is designed to trick users into clicking the link, likely leading to a phishing or malware download site. The presence of multiple Shopify links indicates a potential attempt to disguise malicious links among benign ones.

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=avian+biochemistry+and+molecular+biology+pdf
    • http://files.scfcommunity.org/uploads/1/3/2/7/132741348/113cb13ae3a480.pdf
    • http://files.rosieduttonphotography.com/uploads/1/3/0/7/130776542/f518bb.pdf
    • http://pikelene.ell-ren.org/uploads/1/3/0/8/130873995/6badc82c921.pdf
    • https://cdn.shopify.com/s/files/1/0431/2141/0210/files/78608754661.pdf
    • https://cdn.shopify.com/s/files/1/0431/2567/0042/files/jewedovibalotekilivuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/xediluguponimufuzujorol.pdf
    • https://cdn.shopify.com/s/files/1/0440/5864/0534/files/jelidikuzaxas.pdf
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/wefezilisijetetumiwoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/6251/8182/files/36360023529.pdf
    • https://cdn.shopify.com/s/files/1/0434/2258/0886/files/zibaderebuxamumaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3637/files/maxefitedalesobasebugabog.pdf
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/jivanemox.pdf
    • https://cdn.shopify.com/s/files/1/0435/6875/8943/files/jizawive.pdf
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/57680090865.pdf
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/dafisimumerevidenuxi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001624f.bin
806b133658c832522cac8b88372120d51ba390efeabad727d46db7f9c0c62a5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1624F 5860 bytes
font_01_sfnt_off00017617.bin
b3234286c2cf57fb9a953d0a48b35a7c1f9bedd33afd04f823e3a7d829f29c75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17617 14608 bytes
font_02_sfnt_off0001a367.bin
cb8446d7955f52514583e307d1d31cf743e15a12bc85390c95bca43f2e6bd6e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A367 16076 bytes

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