Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8a0549f4e145d56…

MALICIOUS

PDF

44.1 KB Created: 2020-09-01 05:44:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f834e0dbd10135c7a0af302c0a292732 SHA-1: 7b4d31ba5e0428c538eb9b062649ef44ba43e3a2 SHA-256: e8a0549f4e145d5612a5b533b18432526f969d7c88691a75b6a523b26ffd3476
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a payment redirection lure, indicating a business email compromise pattern. It also includes a malicious redirector link pointing to 'ttraff.com' and a PDF link farm hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and other URLs that appear to be part of a link farm, suggesting an attempt to drive traffic to malicious infrastructure.

Heuristics 4

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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=light+dimmer+using+diac+and+triac+report
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/qr_code_generator_excel_spreadsheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/80432385033.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdf
    • https://static.usrfiles.com/ugd/ce0e6d_d26af189023e48adb1d4b8a399a579b1.pdf
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/lymphatic_system_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/1058/0899/files/mevigilivege.pdf
    • https://cdn.shopify.com/s/files/1/0438/0036/3169/files/26506414787.pdf
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/nexolinalivofagepofolupov.pdf
    • https://cdn.shopify.com/s/files/1/0428/3033/2070/files/dirogukakakasibu.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_off00006f09.bin
198a7bc2eb0b5554df7c3a889db731ecc7f7b3f2f114af32feb3daebe9e6030a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F09 5396 bytes
font_01_sfnt_off0000813c.bin
17ec8cb4b9e3678f1a416377f9d2a672d9afb7f8bbcf7c1b0aefd33aed1bd708		 pdf-font-stream PDF embedded font (sfnt) at offset 0x813C 10128 bytes

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