Malicious PDF — malware analysis report

Static analysis result for SHA-256 2435a31c0740de11…

MALICIOUS

PDF

39.3 KB Created: 2020-08-27 22:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0cb3456001515573a572d1782b69aa58 SHA-1: f90582d2dbbfc429b5e4c4bcb524fe2761e70ca7 SHA-256: 2435a31c0740de11d08c2c2eaca0dc874926735d9fb14eeb22d7ba097f340db3
128 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and heuristics suggest a lure to download content, with the primary malicious link being ttraff.cc. The PDF also hosts a large number of other links, many pointing to Shopify, indicating a link farm for SEO manipulation, as flagged by PDF_SEO_LINK_FARM.

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.cc/pify?keyword=change+your+words+change+your+life+joyce+meyer+pdf+download
    • http://files.mariannecenko.com/uploads/1/3/1/6/131636642/b3ba51cf.pdf
    • http://files.singingwheels.com/uploads/1/3/1/4/131409090/vukapudekijabe-zetar-ritupub-xokutuvakus.pdf
    • https://cdn.shopify.com/s/files/1/0431/1485/6610/files/botire.pdf
    • https://cdn.shopify.com/s/files/1/0434/4784/5030/files/vudoxawa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6812/9431/files/95487676914.pdf
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/ashiq_2_songs_download.pdf
    • https://cdn.shopify.com/s/files/1/0464/5568/5288/files/google_chrome_free_filehippo_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0434/3028/1381/files/amiodarone_davis_plus.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/button_button_short_story_questions_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/lubalenexasepiwizapewe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/1139854761.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_off0000594c.bin
b35f5ca860b835db4c86b98fe5bb71296252813f1f6506102cc735a791ae8f7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x594C 5744 bytes
font_01_sfnt_off00006cc3.bin
b2bda868d142ff711794391b556e9801e3bd3a757419c81479d03c2608acce49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC3 10432 bytes

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