Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa88332df02b8cdd…

MALICIOUS

PDF

107.9 KB Created: 2020-08-27 17:52:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5546936d5977be8b7b2e58dee132a08a SHA-1: 3b62c8b130aeaca2e7513580b7e308a7a4b237cc SHA-256: aa88332df02b8cdd65917ecf6cb6e29a3a85eb9a3680ada2dfc576881065916f
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. Additionally, another critical heuristic identified a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The embedded URL 'https://ttraff.link/pify?keyword=boukenger+vs+super+sentai+ending' is a primary indicator of malicious redirection. While no scripts were extracted, the sheer volume of outbound links and the presence of a redirector strongly suggest a malicious intent to direct users to harmful content.

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.link/pify?keyword=boukenger+vs+super+sentai+ending
    • http://vojiso.4thewellscouts.org.uk/uploads/1/3/0/9/130969060/sabolib_vimekofanufexi_veretubin.pdf
    • http://files.jesusgoes2italy.com/uploads/1/3/1/8/131871730/392450.pdf
    • http://files.deadgunspress.com/uploads/1/3/0/9/130969865/romolekapiwu.pdf
    • http://kereveji.inspirecreativeservices.com/uploads/1/3/2/6/132682883/b05cdb7ebf5.pdf
    • https://cdn.shopify.com/s/files/1/0432/9196/7646/files/5365689066.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36726725464.pdf
    • https://cdn.shopify.com/s/files/1/0433/1261/1481/files/dim_as_worksheet_vba.pdf
    • https://cdn.shopify.com/s/files/1/0439/1626/3592/files/bunnings_fibre_cement_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0460/3651/7028/files/ponixeferumovu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5881/3336/files/sogetadegulon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojezurin.pdf
    • https://cdn.shopify.com/s/files/1/0435/5804/3807/files/xitudopa.pdf
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/bully_apk_mod_free.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_off0000b2a4.bin
f9e15fe4ce6a3ff1a32b0ccdb218e0cb355301e65adb8bf831129cfdd56497e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2A4 57624 bytes
font_01_sfnt_off00016014.bin
702e461a2ea137c04e106275fb9ab9b3b8337af9319ae1e2b9b831ee89323cef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16014 5268 bytes
font_02_sfnt_off0001721e.bin
51ae0b593f451cb2b1979ca3104c454759dbb6ed20371067bdd22c6de6728d19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1721E 15668 bytes

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