Malicious PDF — malware analysis report

Static analysis result for SHA-256 31060b494f900a72…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 17:29:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88223d365ee01687028d944a2e7612e6 SHA-1: 0fcda75ca9ff294992577c5dd8b3fe23c1dc3be6 SHA-256: 31060b494f900a72c0141708771c9e8fc70d1f03ff6ad33c6d4abb991ad76eda
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.ru/pify?keyword=english+crossword+puzzle+with+answers+pdf'. This URL is presented within the document body, disguised as a link to an English crossword puzzle with answers. The PDF also exhibits characteristics of a link farm, with numerous embedded links to other PDFs, many hosted on Shopify. The primary malicious link is the initial redirector.

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=english+crossword+puzzle+with+answers+pdf
    • http://sunifabal.nickdolanmusic.com/uploads/1/3/0/7/130738850/rinedixaf-nujasozareraz-buwutujif.pdf
    • http://fixova.skimpysailing.com/uploads/1/3/1/8/131856158/joxamu.pdf
    • http://files.podicongo.com/uploads/1/3/0/7/130740025/kavasuweximo.pdf
    • http://files.ceramicfingerlabyrinths.shop/uploads/1/3/0/8/130874125/warabivas.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6332/files/11426210681.pdf
    • https://cdn.shopify.com/s/files/1/0436/7027/4201/files/16211837861.pdf
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/53402481847.pdf
    • https://cdn.shopify.com/s/files/1/0434/0744/2076/files/3273811852.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/86694741310.pdf
    • https://cdn.shopify.com/s/files/1/0437/5294/7873/files/22480182260.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6964/files/dufamiziwugudavegovabi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8758/4661/files/arcgis_tutorial_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/42740242342.pdf
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/pantone_formula_guide.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_off00006400.bin
8c36d99bcd2ce62cb115b663c3e02327777740993a27f105d030fac733f6931b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6400 5516 bytes
font_01_sfnt_off000076d3.bin
c611efc7925e5942f6e1843609b9dbe4e791b994af81bd1119811a49d0518795		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76D3 10316 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.