Malicious PDF — malware analysis report

Static analysis result for SHA-256 a451b6b33f3433cf…

MALICIOUS

PDF

40.3 KB Created: 2020-08-03 21:06:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8678e13db07b285132dbbde541d9eb47 SHA-1: 9de0f8f8923a0cbe0c91780db13a5a2b0f6c703f SHA-256: a451b6b33f3433cfb81d7afeba3c3140defd1421aa85f11c50bf2d80b85e8de7
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to a book title and the authoring application, suggesting a lure to disguise the malicious links. The primary malicious URL is https://ttraff.com/pify?keyword=livro+o+cristianismo+puro+e+simples+pdf, which likely serves as a gateway 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.com/pify?keyword=livro+o+cristianismo+puro+e+simples+pdf
    • http://files.kingboosvideogames.com/uploads/1/3/0/9/130969588/rofonopugutilitadugi.pdf
    • http://files.derekroddysblackheadedpythons.com/uploads/1/3/2/3/132302907/d4daa63aca3b46.pdf
    • http://files.4lifeinc.org/uploads/1/3/0/7/130738940/pelorutetivuxe.pdf
    • http://files.mitchellmillermusic.com/uploads/1/3/1/4/131437491/3897494.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92835403356.pdf
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/zameniwijegixiwedubepuda.pdf
    • https://cdn.shopify.com/s/files/1/0431/1983/7345/files/ketemem.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/fominivo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/81103816759.pdf
    • https://cdn.shopify.com/s/files/1/0431/5086/8646/files/wuwonakug.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3387/files/5882557505.pdf
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/81691951845.pdf
    • https://cdn.shopify.com/s/files/1/0436/9963/4330/files/23292975253.pdf
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/pupalofakodezametokiruka.pdf
    • https://cdn.shopify.com/s/files/1/0433/7503/4520/files/jarixupudanenokevinil.pdf
    • https://cdn.shopify.com/s/files/1/0439/1796/7528/files/18518828288.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/84623860510.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_off00005a0c.bin
873db6b32271c0e13c5ca39983c87a64b90a5a67db00c27a4e217fe75f9b687f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0C 5304 bytes
font_01_sfnt_off00006c0a.bin
81dd9f099f1bc3883b0a58106e8b6a906154b81f25b6a37559d7d00a2fd861f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0A 12736 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.