Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4e5b4bd5217c756…

MALICIOUS

PDF

42.4 KB Created: 2020-08-31 05:23:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63e20d21d62f2152ee0c511af351f077 SHA-1: 7f8a7fba98e919d62637d5c475160f29fa911596 SHA-256: c4e5b4bd5217c75652f545a97184e8c885947a15876e2239276e88ce7a71a4e7
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.cc'. The document body also contains this URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector.

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/wix?keyword=temple+run+6+%25C3%25BCcretsiz+indir
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/42070448258.pdf
    • https://cdn.shopify.com/s/files/1/0450/7625/0776/files/castrol_edge_td_5w40.pdf
    • https://cdn.shopify.com/s/files/1/0431/4857/4884/files/9819999649.pdf
    • https://cdn.shopify.com/s/files/1/0432/4235/6904/files/bike_games_pagalworld._com.pdf
    • https://cdn.shopify.com/s/files/1/0428/5733/2895/files/sirojoxuzujokinugi.pdf
    • https://cdn.shopify.com/s/files/1/0446/9784/5913/files/small_to_powerpoint.pdf
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/nccn_lung_cancer_screening_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/mokelejotaguvefimifaku.pdf
    • https://cdn.shopify.com/s/files/1/0433/6975/8874/files/applied_mathematical_demography.pdf
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/72672119371.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/internship_report_on_web_development.pdf
    • https://static.usrfiles.com/ugd/b8c837_0502482389fa47d68f232241c21bd58a.pdf
    • https://static.usrfiles.com/ugd/5ecadc_d7d418439a2c493e827f7094257092f9.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d07.bin
b16f1c6dc4e492ebf815fd023d8ddf1dec4f69579da795eb1cea89ebb0830df9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D07 5284 bytes
font_01_sfnt_off00005eba.bin
4478c4c6bba1a5393ffa86cef42dfe2153cfe304e27ee73acc0a2a2ef68f62eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBA 11980 bytes
font_02_sfnt_off00008452.bin
52c3aec7d4e53593146d32117ae28ed8558c74e507f21defb930853375f33b15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8452 16664 bytes

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