Malicious PDF — malware analysis report

Static analysis result for SHA-256 2486b6679310e08d…

MALICIOUS

PDF

36.8 KB Created: 2020-08-02 04:59:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e02dd94fff58b6350ad18098e88d023 SHA-1: b0e73d9ed7414f6e4ddd9aa6f33b6758f04d89e8 SHA-256: 2486b6679310e08ddbc1dc2bb2af10ae679ef5ace710dd21df3366b22cd12102
120 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'. Additionally, it exhibits a PDF link farm, embedding numerous external links, many hosted on Shopify. The primary malicious link is likely used for further redirection or to host malicious content. The document body is heavily obfuscated and contains the malicious URL, suggesting an attempt to lure users into clicking it.

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.com/pify?keyword=photonics+optical+electronics+in+modern+communications+pdf
    • http://files.nextgenerationmarbleandgranitecom.com/uploads/1/3/1/4/131453436/fewusupezajefiv.pdf
    • http://files.brewstockonlinestore.com/uploads/1/3/0/8/130873945/rilugirujijuro_zepoga.pdf
    • http://files.leilaalves.com/uploads/1/3/0/7/130775515/609b4fcdc86.pdf
    • https://cdn.shopify.com/s/files/1/0431/8897/7813/files/xufemokisodumapakugi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/bukuve.pdf
    • https://cdn.shopify.com/s/files/1/0435/7000/4126/files/66733391821.pdf
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/kujopapurisufexu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/fiber.pdf
    • https://cdn.shopify.com/s/files/1/0436/5841/2185/files/fences_3_crack.pdf
    • https://cdn.shopify.com/s/files/1/0428/6310/0070/files/31023178709.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/gedewupi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4549/files/wanenodisagosanodetox.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/52378308293.pdf
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/34844991019.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_off000052b3.bin
7c46899ba61dae5080f854473a8585a76c36aeeba3e6a5535c9ba75727aec2fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52B3 5396 bytes
font_01_sfnt_off000064e0.bin
ce08d4bedb137812a73e69c463891655e33ad30d2c86842764b18b6a0d931f83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64E0 9792 bytes

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