Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc4bf9d860f86f9b…

MALICIOUS

PDF

41.2 KB Created: 2020-08-03 00:39:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46d35373339e38079e036dffbb2dc4a4 SHA-1: 3c08e7b1fef439aa786895dfc1b9a48f471dc715 SHA-256: fc4bf9d860f86f9b12a6a624b271d8cd776cffcf3ffeee2191d4f8d81ff4baca
140 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the malicious payload. The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The presence of a phone lure further indicates a potential callback phishing or tech-support scam scenario, aiming to trick the user into engaging with malicious actors.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/pify?keyword=8+minute+rule+chart
    • http://files.thomasfundraisingllc.com/uploads/1/3/1/4/131453065/3902226.pdf
    • http://files.fruitporteducationfoundation.com/uploads/1/3/2/7/132711999/d4bc40af1d7e.pdf
    • http://files.bethanyhomestead.co.uk/uploads/1/3/2/3/132302913/2355731.pdf
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/56370049320.pdf
    • https://cdn.shopify.com/s/files/1/0430/0029/9683/files/67278851324.pdf
    • https://cdn.shopify.com/s/files/1/0434/0560/7070/files/58948219037.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.pdf
    • https://cdn.shopify.com/s/files/1/0432/9105/0137/files/73472942915.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/pelinumopabesifoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/5598/8387/files/66015077444.pdf
    • https://cdn.shopify.com/s/files/1/0437/7827/7525/files/minecraft_medieval_town.pdf
    • https://cdn.shopify.com/s/files/1/0435/4975/3507/files/how_to_install_windows_10_on_mac.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdf
    • https://cdn.shopify.com/s/files/1/0436/9743/8875/files/ganovaruzivoxite.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_off00006683.bin
44478ac0f210964b83232705d7857e7b1f2634b5a3eec8867b3bc806ccc269a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6683 4960 bytes
font_01_sfnt_off0000772c.bin
6aadfc84988882537ef4dba9c2b5e74cc7495627719bb8a8bf4adede36722d11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x772C 9804 bytes

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