Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd70f06ec05ef33a…

MALICIOUS

PDF

47.1 KB Created: 2020-08-19 13:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c2028a5fbf78e504a8c2335d53161db SHA-1: c4a9deee46f189dcb343ddfea6568efbcab4541a SHA-256: fd70f06ec05ef33aceaca41038ace1b90c950417c766b56ab26cc14d8652a93c
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, specifically pointing to 'https://ttraff.ru/pify?keyword=design+manual+template+free'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. The document body, though heavily obfuscated, contains the same redirector URL.

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/pify?keyword=design+manual+template+free
    • http://files.theseedoutreach.com/uploads/1/3/1/0/131070327/9134044.pdf
    • https://cdn.shopify.com/s/files/1/0431/6548/3172/files/38118740366.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8613/files/glock_tungsten_guide_rod.pdf
    • https://cdn.shopify.com/s/files/1/0428/2823/4908/files/26929395648.pdf
    • https://cdn.shopify.com/s/files/1/0431/6859/6123/files/61687014771.pdf
    • https://cdn.shopify.com/s/files/1/0432/6617/9230/files/97460498405.pdf
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/logical_aptitude_questions_with_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0438/0069/0848/files/abyat_e_bahoo_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/9102/4277/files/51118224375.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8627/files/mamaru.pdf
    • https://cdn.shopify.com/s/files/1/0434/3123/1637/files/pse_nova_bow.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_off000063c4.bin
2cea00295f7d7028546dd013dc5c54d50ce50ec8f61612314e008517a5796ed4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C4 4992 bytes
font_01_sfnt_off0000749e.bin
87560c96094722e0b06e960fc6e6e0982e5dd9a45b3b8c8ce6a725bc3f373f32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x749E 2268 bytes
font_02_sfnt_off00007eb0.bin
9bce33a7c0dddbfef9793cfcd3955f046aa54982afa28d5e9af86c6d5803c11a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB0 10060 bytes
font_03_sfnt_off0000a117.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA117 4324 bytes

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