Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e5a4cd059b54406…

MALICIOUS

PDF

41.0 KB Created: 2020-08-31 09:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73fb89be30340fa9300001c99a62d18e SHA-1: d16ec367292672714945ed2bb941cabefb193f1b SHA-256: 9e5a4cd059b54406c4c9f2b1d0ed8ea0f1586cf76a45e274226c47747770bb68
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link that redirects to a malicious URL, disguised as a movie download. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this behavior. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates the PDF is part of a larger network of linked documents, likely for SEO manipulation or to distribute malicious content. No scripts were extracted from this sample.

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=baixar+jogos+vorazes+em+chamas
    • https://static.usrfiles.com/ugd/b65acf_776be70b03db4957b6a5ae41a85ed823.pdf
    • https://static.usrfiles.com/ugd/8b9728_6e3fe6a120b642e68df6d0a485641e04.pdf
    • https://static.usrfiles.com/ugd/68ec51_4dec220eef67467780b665f87fcfb380.pdf
    • https://static.usrfiles.com/ugd/277b62_7d7ed3be82724087874003b60ac273c2.pdf
    • https://static.usrfiles.com/ugd/b8c837_adcf0e3d827b45dfb0d27593129c00a1.pdf
    • https://cdn.shopify.com/s/files/1/0434/5357/9430/files/20189935080.pdf
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/hp_laserjet_1012_driver.pdf
    • https://cdn.shopify.com/s/files/1/0440/7299/2918/files/jowojugenevibedagejariz.pdf
    • https://cdn.shopify.com/s/files/1/0430/7763/2149/files/marvelous_designer_cloth_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/dokajafomomapulonalasob.pdf
    • https://static.usrfiles.com/ugd/2f8cea_ad94535a234547f892da76b9be618acf.pdf
    • https://static.usrfiles.com/ugd/f09a9d_aab761e89fee4bee8a9e39e10899a2ff.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5dee3ed256d4d3ba68fd5e3a17e7059.pdf
    • https://static.usrfiles.com/ugd/80c1db_09eb414ee20d48f5826e19f5a7f151c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_19eb905ce2e84e5c9984de8a8255a2fc.pdf
    • https://static.usrfiles.com/ugd/b8c837_d87134b51c754a6f99a83597c7862a2f.pdf
    • https://static.usrfiles.com/ugd/0cd019_0f5fab9837684f0caf08de9acc64ec0b.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_off00005d38.bin
c80c92c0932828b7c08e408a2758868c45a4ed548fa08950d6d28eff21b9875f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D38 5484 bytes
font_01_sfnt_off00006fd5.bin
894229b53306a14a6317814e241ffbfc88705f98d41abd8499668e73585995be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD5 12020 bytes

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