Malicious PDF — malware analysis report

Static analysis result for SHA-256 29d7e0d1f33fac83…

MALICIOUS

PDF

34.5 KB Created: 2020-09-03 00:02:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4972b3837253f109a7df804e0bb48dc0 SHA-1: dcab688ea8a69655193b9bef4bd9adb31c048282 SHA-256: 29d7e0d1f33fac837dd1f4edd3b5504a6296694a79ea1c348e5914bd66709b24
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link pointing to 'ttraff.cc', which is known for distributing malicious content. Additionally, it features a large number of SEO-optimized PDF links hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The presence of these links indicates an attempt to lure users to potentially harmful destinations or to artificially inflate search engine rankings for malicious purposes.

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/pify?keyword=pt3+english+error+identification+exercises+with+answers
    • https://cdn.shopify.com/s/files/1/0430/7428/9813/files/medicamentos_anticoagulantes.pdf
    • https://cdn.shopify.com/s/files/1/0433/2922/4857/files/abaqus_analysis_user_s_manual_6._14_vol_3.pdf
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/76302084948.pdf
    • https://cdn.shopify.com/s/files/1/0432/9160/7204/files/barotadopep.pdf
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/69057835516.pdf
    • https://cdn.shopify.com/s/files/1/0443/8438/7238/files/types_of_pneumonia.pdf
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/32558078582.pdf
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/i_m_still_standing_free_sheet_music.pdf
    • https://static.usrfiles.com/ugd/b148e5_6340cd337ea14e0d9387f032ee45959d.pdf
    • https://static.usrfiles.com/ugd/be19e1_d4bdfe9ff82343dd89ddd764052d1121.pdf
    • https://static.usrfiles.com/ugd/16a96a_72f3c637f6c14d78b052840247021390.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_off00004895.bin
7c3a2e1967cb8407754c643c4033af35d998d4a589f026ac75da6bf32385b29f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4895 5608 bytes
font_01_sfnt_off00005bb7.bin
38b9f86d5761eb2942b11f35c35b31d3ddf2ed726c7e805b4a15905cb6c73f3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB7 9752 bytes

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