Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7eb1a8f87f8ccee…

MALICIOUS

PDF

42.8 KB Created: 2020-08-08 23:12:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8248d03e865c1cf5b6d5fa825172ffc7 SHA-1: 106571689f2c83329eaa8e649df4573cf77e3d3e SHA-256: e7eb1a8f87f8ccee170ea6b18d11175ca1e3f8bc87f8957f3dd814ce4f6af57d
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=bookmark+pdf+online+free'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, many hosted on shopify.com. The document body contains obfuscated text and a reference to the malicious URL, suggesting a lure to a malicious site.

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=bookmark+pdf+online+free
    • http://files.wiffrudd.com/uploads/1/3/1/4/131438888/4257613.pdf
    • http://files.anikacarpenter.com/uploads/1/3/1/4/131453998/7a5399725b.pdf
    • http://files.brothersinthewild.com/uploads/1/3/0/7/130739802/lokewavudukodig.pdf
    • http://files.annikascaketutorials.com/uploads/1/3/0/8/130815277/e39fd9fd.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/44733311829.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/72408504846.pdf
    • https://cdn.shopify.com/s/files/1/0432/9262/3016/files/26138600537.pdf
    • https://cdn.shopify.com/s/files/1/0435/9880/7202/files/amls_completo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3972/7509/files/dutadusavidovolisi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6822/6725/files/bemuroxaxumovavewat.pdf
    • https://cdn.shopify.com/s/files/1/0434/4777/9478/files/5697034045.pdf
    • https://cdn.shopify.com/s/files/1/0440/3871/7605/files/fudasodonilavadevixi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/stokstad_art_history_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/28548839738.pdf
    • https://cdn.shopify.com/s/files/1/0440/1584/5541/files/gifubulagikomapanirotida.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/48208047319.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_off0000699d.bin
a58e599b73f8bbfe4cb8ccaba6efe040d336aa43b9c486e3f41a08923ada0a96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x699D 5124 bytes
font_01_sfnt_off00007af6.bin
3cd9db964d0a0b95b198971adcdd3bc4076ff63ee276d66dc5c2d115c04d38ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF6 10336 bytes

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