Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bc39faaee7db209…

MALICIOUS

PDF

48.6 KB Created: 2020-08-30 12:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b460c71da6fc392f4a7c426e025d584 SHA-1: 9da973da863d0bb9f118da5ab8a6db1ae00d784f SHA-256: 2bc39faaee7db20968b17f533f27b2839631a2312092ec2f213f7b2f3face550
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack pattern involves luring users to a malicious site via a deceptive link.

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.com/wix?keyword=como+ganar+en+chance
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/3256222755.pdf
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/94522007158.pdf
    • https://cdn.shopify.com/s/files/1/0437/7726/1729/files/43952672467.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/39363034955.pdf
    • https://cdn.shopify.com/s/files/1/0436/0824/4381/files/pifamak.pdf
    • https://static.usrfiles.com/ugd/a43ec6_e9856b56b6244e158d097ead34f4e2af.pdf
    • https://static.usrfiles.com/ugd/784815_77e22a8f77b84866b5df71a46ce133e0.pdf
    • https://static.usrfiles.com/ugd/b8c837_311d9ff710d54d5ea14d805a016b4f54.pdf
    • https://static.usrfiles.com/ugd/bf650e_c891d1f9dffb4d00b7f9758bbb304140.pdf
    • https://static.usrfiles.com/ugd/9b33c5_39aa0d604075483fb80cba649efa384b.pdf
    • https://cdn.shopify.com/s/files/1/0463/3853/9682/files/jovolunok.pdf
    • https://cdn.shopify.com/s/files/1/0432/9455/6320/files/dutosivawezejedo.pdf
    • https://static.usrfiles.com/ugd/87a178_7af7c2cf1351408daf2959ffecd38ca5.pdf
    • https://static.usrfiles.com/ugd/fa6f14_3ca4e404727c47bfa719d189414e907b.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e8382fce916485a95f9226344827507.pdf
    • https://static.usrfiles.com/ugd/b8c837_48151c44e7f5418980e2c23affea03ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_a95941689db5425b9f4a0dd5103113fd.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/
    • https://cdn.shopify.com/s/files/1/0463/3853/9682

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071f3.bin
4bfb8987d0ae4c3dd30abfd754277331cc1a840a08a9a61c535569482dbfe4ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x71F3 4688 bytes
font_01_sfnt_off0000819a.bin
af7185d76057806b33ac721cef6f32be450815330c77f3189a149f0b89f73e72
pdf-font-stream PDF embedded font (sfnt) at offset 0x819A 11144 bytes
font_02_sfnt_off0000a59e.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xA59E 4324 bytes