Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b22289b7c7c2e12…

MALICIOUS

PDF

32.2 KB Created: 2020-08-20 00:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 651f6f7d94fda4a0f1916c8b56ed16ae SHA-1: 439c95557d0c8803a7f59b8c3f3e5c15db7246fe SHA-256: 9b22289b7c7c2e1209d44ead2f058bc95bc8a1e88119c576c4929b35d147fe4e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm, with numerous links to PDFs hosted on Shopify, some of which are potentially malicious. The document body contains garbled text but includes the same redirector URL, suggesting an attempt to lure users to malicious infrastructure. No scripts were extracted, limiting the analysis of direct payload execution.

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=commando+2+songs++pagalworld+video
    • http://vezuwig.qualesnest.com/uploads/1/3/2/7/132740249/d7c128eaa04e.pdf
    • http://nuwifotul.pulaskicadets.org/uploads/1/3/2/7/132740541/tekok-rasuzoberekeve-sedetixedu.pdf
    • http://files.palmbayclub.net/uploads/1/3/0/7/130775831/tanik.pdf
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/how_to_program_craftsman_garage_door_opener.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5377/files/voltage_drop_definition.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/birth_control_methods_chart.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/78476923655.pdf
    • https://cdn.shopify.com/s/files/1/0437/1084/0981/files/avenir_conseil_formation_catia_v5.pdf
    • https://cdn.shopify.com/s/files/1/0439/0033/8331/files/lipon.pdf
    • https://cdn.shopify.com/s/files/1/0432/4727/2098/files/jenigipiguwevemad.pdf
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/eagle_scout_letters_of_recommendation.pdf
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/73285925602.pdf
    • https://cdn.shopify.com/s/files/1/0428/6083/9079/files/buxobosolapuwoxodag.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/43174698694.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_off000041a1.bin
493e88932f6f9e282f15d5b6de9104569c214502ceaa7b43a400a4dea8775768		 pdf-font-stream PDF embedded font (sfnt) at offset 0x41A1 5468 bytes
font_01_sfnt_off0000543a.bin
bc6bab4db1823e85d2b661cb80289bff9bbc1a97cade975c313729fb3373e456		 pdf-font-stream PDF embedded font (sfnt) at offset 0x543A 9324 bytes

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