Malicious PDF — malware analysis report

Static analysis result for SHA-256 84d4f075e9315853…

MALICIOUS

PDF

50.7 KB Created: 2020-08-31 09:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f8a99cfef0bc72bca2bf0625592117dc SHA-1: 2e61077c9a68d0dfc012d39fa79a79398e47ab0e SHA-256: 84d4f075e9315853899b3e08ace347f6f895fab8e409cb726836fee72e3ce173
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. It also exhibits characteristics of a PDF link farm, with numerous links to Shopify-hosted PDFs, likely for SEO poisoning or to obscure the malicious destination. The document body contains a call-to-action phrase and the specific URL 'https://ttraff.com/wix?keyword=descargar+gta+san+andreas+para+psp', reinforcing the lure to click the link.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=descargar+gta+san+andreas+para+psp
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/filibewazodezasimas.pdf
    • https://cdn.shopify.com/s/files/1/0428/7453/6103/files/discord_developer_mode.pdf
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/hong_kong_attractions_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/9997/8904/files/cholamandalam_motor_insurance_claim_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/9405/6861/files/bootstrap_4_checkout_page_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/6630/2357/files/eng_report_definition.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/employment_service_letter_format.pdf
    • https://cdn.shopify.com/s/files/1/0436/1610/8701/files/6052144934.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/fasibodanexaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/business_accounting_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/4252/0739/files/jubaxogob.pdf
    • https://static.usrfiles.com/ugd/f459ea_933dce474a5246b682f2ed54173eacb0.pdf
    • https://static.usrfiles.com/ugd/696b8a_2cfa779f2fdb4518a3aa7a3410916525.pdf
    • https://static.usrfiles.com/ugd/a107db_7db7a0e819384988a1f07bec61ab2d20.pdf
    • https://static.usrfiles.com/ugd/dc98cc_8d0a253d1ac644709f090bd03a614462.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a20.bin
691ed50bb457f85115e279bfc0b55fa7aeee3f1fc497a82e7ac7f6e47e934376		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A20 5208 bytes
font_01_sfnt_off00007bd5.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD5 1800 bytes
font_02_sfnt_off00008463.bin
d5416e7f1e93a117cfe7620e4874507a19d7da13319fc6a8b217237847670112		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8463 10056 bytes
font_03_sfnt_off0000a70e.bin
bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA70E 16312 bytes

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