Malicious PDF — malware analysis report

Static analysis result for SHA-256 98cf944c7a8ab464…

MALICIOUS

PDF

35.9 KB Created: 2020-09-07 03:05:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48cfe2d695b3e76756879141455e3b30 SHA-1: 60fe433f2cd848d47297f4a06266623cf9ec5e04 SHA-256: 98cf944c7a8ab464469b4503e32a302000a93518c885c1a812a942d49f7e183a
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, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=the+aviator+full+movie', is designed to lure users with a fake movie title. The document also exhibits a PDF link farm heuristic, embedding numerous links, primarily to Shopify-hosted PDFs, likely for SEO manipulation or to obscure the malicious redirector. The primary malicious IOC is the redirector URL.

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.link/wix?keyword=the+aviator+full+movie
    • https://cdn.shopify.com/s/files/1/0433/7483/7918/files/lopowogedeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/3656/5923/files/92486596034.pdf
    • https://cdn.shopify.com/s/files/1/0432/6539/2804/files/nixuvero.pdf
    • https://cdn.shopify.com/s/files/1/0433/9331/9068/files/fukerejiwofupiziti.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/line_chart_d3.pdf
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/bezunaguxenedu.pdf
    • https://static.usrfiles.com/ugd/6908d7_61337fac9b874fa88b95e57ee47debef.pdf
    • https://static.usrfiles.com/ugd/b8c837_508d2701a4ec4ecdafc3834678ae5a3d.pdf
    • https://cdn.shopify.com/s/files/1/0432/6676/9054/files/kerala_government_malayalam_calendar_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdf
    • https://cdn.shopify.com/s/files/1/0460/3310/9156/files/chobbar_song_mr_jatt.pdf
    • https://cdn.shopify.com/s/files/1/0435/3556/4949/files/agama_adalah_nasihat.pdf
    • https://cdn.shopify.com/s/files/1/0462/7244/6615/files/payday_2_font.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_off00004f1e.bin
33d0679ba1a1ad11e06e6750c31b1a1ecacdffccc53f920e1425a1c4249ef572		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F1E 4836 bytes
font_01_sfnt_off00005f6d.bin
369833ce05dd61b83e5a88ff65a27707e02731efd4ce019b453b9a747753e612		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6D 10952 bytes

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