Malicious PDF — malware analysis report

Static analysis result for SHA-256 28a4c5241d76f54f…

MALICIOUS

PDF

40.5 KB Created: 2020-08-23 23:31:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8148b2fdadf953cfba3d99034a0d8f9d SHA-1: 93fe1dfd8b85a2e9710a991ec428134130f4ffab SHA-256: 28a4c5241d76f54feebf0738361fc51177753f2d925a125e160cb24db4a8bb11
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 a link farm hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=car+driving+simulator+games++pc', is identified as a malicious redirector. This suggests the document's purpose is to direct users to malicious infrastructure, likely for further exploitation or phishing.

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=car+driving+simulator+games++pc
    • http://files.connectedandautonomoustransport.com/uploads/1/3/1/3/131382595/zugasem-fukasebo-ririwavudejobek.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/lisa_kleypas_married_by_morning.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/kaxediwadine.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/texuworupidutal.pdf
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/guide_fiscal_uqtr.pdf
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/google_play_store_app_on_ipad.pdf
    • https://cdn.shopify.com/s/files/1/0438/0730/9986/files/kesibukuxogeva.pdf
    • https://cdn.shopify.com/s/files/1/0431/4900/0864/files/vosileruxevofaxaze.pdf
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/wolumu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/mitoge.pdf
    • https://cdn.shopify.com/s/files/1/0433/7962/2040/files/vepuv.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_off00006097.bin
6b1cd208a6a4067e07e8d02e35f5f57ac340dac6219dd991d560dfaa1f4fea5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6097 5356 bytes
font_01_sfnt_off000072c5.bin
a3babb2484ea94f99851a800357469eb172c9d21fb58d58d96f1c5f4d97738c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C5 10192 bytes

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