Malicious PDF — malware analysis report

Static analysis result for SHA-256 b06f216a26d9744b…

MALICIOUS

PDF

38.8 KB Created: 2020-08-31 03:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92d40ec369698f1ad917801aab7869bf SHA-1: c22939426f150f374e321f0ee9f301a5d65069ff SHA-256: b06f216a26d9744b85719b13a79295a4f7034842a32aa7859b823bd904d1b8cd
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily corrupted, contains text suggesting it is a lure for 'halo piano sheet music free'. The primary malicious URL is https://ttraff.cc/wix?keyword=halo+piano+sheet+music+free, which is likely used to redirect the user to further malicious content.

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=halo+piano+sheet+music+free
    • https://static.usrfiles.com/ugd/625844_3dd034827c0942a2818f558d2496df41.pdf
    • https://static.usrfiles.com/ugd/3f0e57_97dadcb2f4e74658a49a7509dcd1dbfe.pdf
    • https://static.usrfiles.com/ugd/b8c837_36791c1b61324c0e93b04f5527d5f766.pdf
    • https://static.usrfiles.com/ugd/9757e7_2f9e45e8b7884c1cb985a5aa8225e080.pdf
    • https://static.usrfiles.com/ugd/e02969_4c4b4641057641e2bc93cc1cb024993d.pdf
    • https://static.usrfiles.com/ugd/b8c837_de375d03be5b4531aae2a3e01fc7263c.pdf
    • https://static.usrfiles.com/ugd/98857b_cd55d233b2ec4222a72816161cdb506d.pdf
    • https://static.usrfiles.com/ugd/b5472a_51914f81b862483e91933044c5ba66a4.pdf
    • https://static.usrfiles.com/ugd/b8c837_e7493162631d4435b092bae9165f26ed.pdf
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/62764290300.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/19355022479.pdf
    • https://cdn.shopify.com/s/files/1/0437/3368/0282/files/axel_springer_annual_report_2011.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/82055496276.pdf
    • https://cdn.shopify.com/s/files/1/0431/8347/2802/files/zamatujubobazagi.pdf
    • https://cdn.shopify.com/s/files/1/0460/1665/9623/files/agilent_33220a_function_generator_manual.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_off00004e96.bin
6212f21ac1cc264d9e7b4b1156bd16c7f0e67b03e55bc940ac9de92c6b701329		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E96 5216 bytes
font_01_sfnt_off00006022.bin
2b74cf6d3f91e6ffa1a1fdd72e6e495e70dacb45168c31d9cd29050dceac68cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6022 14052 bytes

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