Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d0adef4501cc53b…

MALICIOUS

PDF

42.1 KB Created: 2020-08-12 09:17:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e4ef9bcc1081d244857f1ca5862d10d SHA-1: 4702c6379b4ac32c3bd67fd0794a0a666a087d24 SHA-256: 9d0adef4501cc53b39455689d1f7496d775f4d0eaa6bba4de4061b203225646b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=baixar+pdf+24+free, which is likely used to redirect the user to a malicious site. The document body also contains this URL and other PDF links, suggesting a link farm or redirection scheme to distribute malware or phishing 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/pify?keyword=baixar+pdf+24+free
    • http://zikizuvi.hope.cr/uploads/1/3/2/6/132682565/lepejaxinoka_wemasot.pdf
    • http://files.preservehealthcentre.com/uploads/1/3/0/7/130776088/dd3a6ea47a.pdf
    • http://files.viewfromtheoutfield.com/uploads/1/3/1/8/131871462/dosojunajux.pdf
    • https://cdn.shopify.com/s/files/1/0428/3439/5295/files/9943192650.pdf
    • https://cdn.shopify.com/s/files/1/0432/9711/2219/files/parujinofivafami.pdf
    • https://cdn.shopify.com/s/files/1/0434/1386/4604/files/57168192009.pdf
    • https://cdn.shopify.com/s/files/1/0435/0361/6165/files/polar_coordinates_and_rectangular_coordinates.pdf
    • https://cdn.shopify.com/s/files/1/0434/2690/6264/files/dogegizanuvojelagagas.pdf
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/56912938362.pdf
    • https://cdn.shopify.com/s/files/1/0436/6378/6137/files/kamawe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/33925007585.pdf
    • https://cdn.shopify.com/s/files/1/0432/1542/1600/files/airline_breathing_apparatus.pdf
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/gotizosuwofirigibedubodo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004777.bin
c36d9d45c3f248aa9555a6627eef2e4156dd265e798cea518ea08b4e8a97dbb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4777 5120 bytes
font_01_sfnt_off00005936.bin
5b486e36f3347e563016c4dbd2dd26991a993ad4d6330f2a708065daaae3909e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5936 4652 bytes
font_02_sfnt_off00006919.bin
8526500c98b69345909e9f50e942f809fb36abacc2526a2bdb0845be8483268f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6919 10560 bytes
font_03_sfnt_off00008d35.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D35 4324 bytes

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