Malicious PDF — malware analysis report

Static analysis result for SHA-256 8024217235ae71a6…

MALICIOUS

PDF

57.5 KB Created: 2020-09-01 10:29:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56b3d21d386408088055226a714ed210 SHA-1: 3e6f4e89a7d2db7fdfc20fe9a483dffd4f44ac30 SHA-256: 8024217235ae71a6fe3ea2e11df39a04ba64aebe19c9ad5931c95ec6f21b8cd1
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=angkor+fighters+tamil+full+movie'. The document body, though heavily obfuscated, contains this same URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify. This indicates a likely phishing or scam attempt using a movie title as bait to drive traffic to malicious sites.

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/wix?keyword=angkor+fighters+tamil+full+movie
    • https://cdn.shopify.com/s/files/1/0437/5796/1374/files/66556260679.pdf
    • https://cdn.shopify.com/s/files/1/0440/8023/4661/files/definition_of_ethics_and_morality.pdf
    • https://cdn.shopify.com/s/files/1/0433/0553/3604/files/72074055732.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/9772345498.pdf
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/delete_time_machine_backups.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9459/files/wixibemofiderurajuvivile.pdf
    • https://cdn.shopify.com/s/files/1/0433/6821/8780/files/calendar_spreadsheet_google_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/3548/3551/files/15245339653.pdf
    • https://static.usrfiles.com/ugd/99a8f2_e35699c9cf7845c8ae1b03f470e59103.pdf
    • https://static.usrfiles.com/ugd/b8c837_b06a01a1039a4ca4b79ed6da1d092866.pdf
    • https://static.usrfiles.com/ugd/f459ea_26a51008bbd94300a61c4f58b7e34a7d.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/best_ad_blocker_android_apk.pdf
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/70850785725.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_off0000a1c4.bin
83323e65e7c49b8883971834a35a7a60c7cdf31656b4b37d0d970b5172911d84		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1C4 5296 bytes
font_01_sfnt_off0000b3a9.bin
2a00ec1841b7afc23b85e238b1b4bc4c90a0b4c74d4ec03720874967db7fb5f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB3A9 11532 bytes

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