Malicious PDF — malware analysis report

Static analysis result for SHA-256 adae0fcf22981315…

MALICIOUS

PDF

52.5 KB Created: 2020-08-24 05:20:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a5c77cae36f6ae9230fa63f42c6a1a4 SHA-1: ef5b0cdec5ac9c1cdd0e8c12237b272eeaf4f30f SHA-256: adae0fcf22981315b7ece2ad057a07a3d899095a7349cb2dfd0666e5cbd7dbc8
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm designed for SEO manipulation. One of the primary links, 'https://ttraff.cc/pify?keyword=analogias+verbales+para+ni%25C3%25B1os+pdf', is identified as a malicious redirector. This indicates the document's purpose is to lure users through search engines and then redirect them to malicious content via the redirector.

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=analogias+verbales+para+ni%25C3%25B1os+pdf
    • http://kesipuxu.investingwithheart.com/uploads/1/3/1/4/131438641/b9729efae.pdf
    • http://files.dklewis.net/uploads/1/3/0/9/130969754/1759036.pdf
    • http://pogefow.aspireinsurancegroup.com/uploads/1/3/0/7/130776131/bokuxake-detubuv.pdf
    • http://bafepi.stormriderswindsurfingclub.com/uploads/1/3/0/7/130739173/jodaribozijopo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1234/1416/files/momexoxejejaselija.pdf
    • https://cdn.shopify.com/s/files/1/0440/0958/6846/files/62452125973.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdf
    • https://cdn.shopify.com/s/files/1/0428/9013/3663/files/petixivalebuju.pdf
    • https://cdn.shopify.com/s/files/1/0430/3588/5721/files/lonubuzejapedativojisuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/gunoborixivalotuli.pdf
    • https://cdn.shopify.com/s/files/1/0433/7526/3909/files/dalewitukas.pdf
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/31000168975.pdf
    • https://cdn.shopify.com/s/files/1/0438/6127/8870/files/megofivixanulon.pdf
    • https://cdn.shopify.com/s/files/1/0458/0799/2998/files/pekifivisajagozazatix.pdf
    • https://cdn.shopify.com/s/files/1/0436/4192/9886/files/12459280267.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0309/files/samugomibazoj.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_off000068d9.bin
b19751d877048dcf6bd6dcd594c9687c7c33a1c5003e583151bcec49741a2869		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68D9 5320 bytes
font_01_sfnt_off00007aae.bin
919738e7662acb7e5a8f0a373b4f4138723a7bfc6a0b1b0bedf90a94b458c48a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AAE 11340 bytes
font_02_sfnt_off00009fca.bin
8526dfdaf9b8d62c51faf03373666e2c64285d8597a587e409a881ae6feb351c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FCA 16124 bytes
font_03_sfnt_off0000b4a9.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4A9 4324 bytes

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