Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d6e29f1872f2378…

MALICIOUS

PDF

51.2 KB Created: 2020-08-04 18:31:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91b37e7f44a857aa3f65c9c865924d60 SHA-1: 781e6a54545ef6b1a0bd7c582945c0f9081fafca SHA-256: 2d6e29f1872f2378e65d783f13c49d17fca6d93dd41f69fb0ff57eb81fe3dcc3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains numerous links, many pointing to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the target URL, suggesting a lure to download or view a PDF. The presence of a malicious redirector indicates the intent to lead the user to a harmful destination.

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=types+of+artificial+intelligence+pdf
    • http://tanozaguw.stallaureas.com/uploads/1/3/1/6/131636725/5139815.pdf
    • http://files.nileswesttheatre.com/uploads/1/3/1/8/131857782/xawixaxe_fobusawilari_dipopegulagilot_datutokes.pdf
    • http://files.theproblemsolversnc.com/uploads/1/3/1/6/131607374/vawuxepovaxazen_tufuwapixe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/durga_saptashati_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/95166335037.pdf
    • https://cdn.shopify.com/s/files/1/0434/0649/1797/files/wosoxibetojozudanejese.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/33086750560.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/24406419645.pdf
    • https://cdn.shopify.com/s/files/1/0429/9787/4851/files/dirt_devil_manuals_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/4549/4684/files/ruvomefevosigi.pdf
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/54738147415.pdf
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/valpakine_200mg_ml_bula.pdf
    • https://cdn.shopify.com/s/files/1/0429/1543/0553/files/nebebarujupagujunigi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3759/7607/files/vezedel.pdf
    • https://cdn.shopify.com/s/files/1/0432/9088/6299/files/37574538431.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_off00007b25.bin
73cd5d340e19a81dbb3c261baa4f543cfb7ad81123e382be7ca14c1f3f5cb940		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B25 5164 bytes
font_01_sfnt_off00008ccc.bin
1e938f411724f75682c1daac537bc62ce9e764de5af8c373667d265545da8da5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCC 10796 bytes
font_02_sfnt_off0000b1b5.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1B5 4324 bytes

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