Malicious PDF — malware analysis report

Static analysis result for SHA-256 aae9e8c94cf38ebe…

MALICIOUS

PDF

45.7 KB Created: 2020-08-02 19:17:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81cc410d3fad38623477e8ca918234d9 SHA-1: 2d84f3942b98fd5c7a1a9d1400321fbef4bb86bd SHA-256: aae9e8c94cf38ebeb73f81c208a79cc1010203a5d1d8cbfe8e55b028ed285e48
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This suggests a link farm or phishing campaign designed to redirect users to malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/pify?keyword=my+immortal+sheet+music
    • http://files.sarkakocicka.net/uploads/1/3/1/4/131452783/2498831.pdf
    • http://files.tweetyssweeties.com/uploads/1/3/2/6/132680974/basirok_zofovogizezafa_veragurevaz_misovaduvan.pdf
    • http://files.glenelgcp.com/uploads/1/3/1/3/131384401/nakisixapinixusonufo.pdf
    • http://files.davidgloverproductions.com/uploads/1/3/1/4/131453498/f490ee64f8aa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3097/files/wojomejuzinaju.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/staxel_dedicated_server.pdf
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/4977050013.pdf
    • https://cdn.shopify.com/s/files/1/0438/7468/0987/files/34521438177.pdf
    • https://cdn.shopify.com/s/files/1/0436/5336/5910/files/kewurewejegedipifopaposek.pdf
    • https://cdn.shopify.com/s/files/1/0440/1440/3742/files/furefizek.pdf
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/34995645872.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/jisizexufe.pdf
    • https://cdn.shopify.com/s/files/1/0432/5064/7204/files/82192502900.pdf
    • https://cdn.shopify.com/s/files/1/0431/1567/5809/files/gagefusup.pdf
    • https://cdn.shopify.com/s/files/1/0431/6469/6738/files/19495627222.pdf
    • https://cdn.shopify.com/s/files/1/0432/3776/9383/files/rexukadulob.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_off00007457.bin
77d0a4878e3f3ee7f8c04e4bbaa12384da2378165b4dd1718fa673dafeaab4de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7457 5148 bytes
font_01_sfnt_off000085b7.bin
f0eec017a678616bc292caa824686e61b1d93ad72975863bef4b8439141448eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85B7 10596 bytes

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