Malicious PDF — malware analysis report

Static analysis result for SHA-256 576f76d9411fbdab…

MALICIOUS

PDF

40.6 KB Created: 2020-08-19 10:27:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62322be938854a0ad4f650e98101a99b SHA-1: f73de4892a08ae5e3120e19963c7e352fb08ba38 SHA-256: 576f76d9411fbdab9b3c6763ca7b132ff1def8c88e56cc0766cbf0c8910410d3
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'. The document body, though partially corrupted, includes the text 'Cognos 11 report studio permissions' and the malicious URL, suggesting a lure to trick users into visiting a potentially harmful site. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true destination.

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/pify?keyword=cognos+11+report+studio+permissions
    • http://files.letteringchallenges.com/uploads/1/3/1/4/131437987/jirurumu.pdf
    • http://files.djdesignsbrooklyn.com/uploads/1/3/1/3/131378993/9744562.pdf
    • http://pusumatu.hiltonheadislandinvitational.com/uploads/1/3/1/6/131606349/6d1a56816.pdf
    • http://logofa.teddies-afrique.com/uploads/1/3/1/4/131438233/c357f326c13.pdf
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/marathi_balgeet_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0439/8533/8526/files/kojudinamirunov.pdf
    • https://cdn.shopify.com/s/files/1/0430/5528/4378/files/tovutimifurikes.pdf
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/nenedupipipuzotogevij.pdf
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/nanizoxarom.pdf
    • https://cdn.shopify.com/s/files/1/0440/3573/5717/files/47922785806.pdf
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/darasewepiwebavuto.pdf
    • https://cdn.shopify.com/s/files/1/0434/6445/8405/files/hp_laser_jet_p3005n_drivers.pdf
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/7th_grade_math_word_problems_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/tagisanemadexi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/9289603254.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_off0000634d.bin
2ad7fa48aa84d9b769d2b687ca12f2b3d409f0e5cb062702add4d49b2ba28dcc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x634D 4996 bytes
font_01_sfnt_off0000743b.bin
f3284e2a66de742c1367eb4fd0a1c892859e3061a0159e14390849263cfcdcbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x743B 9808 bytes

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