Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2e3cabe5684a3ab…

MALICIOUS

PDF

40.5 KB Created: 2020-08-15 01:04:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86670c7a3dbc70f77a321491d97e3e91 SHA-1: b13ee31c60407f8d980ef731d367b34393f1e91a SHA-256: f2e3cabe5684a3ab63a049052b0bbf9f4b4978e5f91cccc4ce333e271e51cd19
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This link is presented within the document body, disguised as a manual. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious destination. No scripts were extracted, and the document body itself is heavily obfuscated, but the primary malicious intent is clear from the 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.cc/wb?keyword=mtx%20thunder%20pro%202%20manual
    • http://files.sheevzphotography.com/uploads/1/3/1/4/131453406/81c93b8e84df634.pdf
    • http://nigixopej.carriehohmann.com/uploads/1/3/0/8/130873851/9541921.pdf
    • https://cdn.shopify.com/s/files/1/0430/8477/5577/files/84490581693.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3768/files/anime_battle_2._2.pdf
    • https://cdn.shopify.com/s/files/1/0428/7440/5020/files/94917071106.pdf
    • https://cdn.shopify.com/s/files/1/0435/3071/5288/files/jujil.pdf
    • https://cdn.shopify.com/s/files/1/0436/4143/8366/files/angular_momentum_in_quantum_mechanics_a._r._edmonds.pdf
    • https://cdn.shopify.com/s/files/1/0437/9898/6909/files/12th_answer_sheet_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/0079/1191/files/netidu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/fomefadezodezele.pdf
    • https://cdn.shopify.com/s/files/1/0435/4703/3752/files/dokoxirowilunewoviwurez.pdf
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/t_m_apostol_calculus.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/
    • https://cdn.shopify.com/s

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f0a.bin
59fde6b2b1cd39b6d535d76c574fc7753f42fb0d204f70ccfb75481f7060b573		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0A 5224 bytes
font_01_sfnt_off000070a2.bin
b3227efbe43fefce4b50fa1ad40545926b2c77cbb13009d74ec6e4c3ff4b1ef9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70A2 10640 bytes

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