Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dae7f5b6cb667bb…

MALICIOUS

PDF

40.9 KB Created: 2020-08-07 09:20:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8420b8e64c885febb4b2e059df259a6a SHA-1: 0b1597f7684e1c386e346fd7cbd6dac94cbc170c SHA-256: 2dae7f5b6cb667bbcfa6456d781079531d2e5c53dc1e994bcf2eb15a3b94aada
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a redirector to malicious infrastructure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates a direct link to a known malicious redirector, and 'PDF_SEO_LINK_FARM' suggests a large number of external links, likely for SEO manipulation or to host further 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.com/wb?keyword=inserting%20pdf%20into%20word%20multiple%20pages
    • http://files.whiteherondesign.com/uploads/1/3/0/7/130739564/213b105ff523685.pdf
    • http://files.samuraisharp.com/uploads/1/3/1/3/131379552/gatojubozora_pusawajatepe.pdf
    • http://files.visualmediaonline.com/uploads/1/3/1/8/131871705/wojipipo.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/xusebibivelezanur.pdf
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/loxodebop.pdf
    • https://cdn.shopify.com/s/files/1/0437/0045/3541/files/wemenudopaxepulisu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/xulazi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/xugobupuvixujefokibijuwor.pdf
    • https://cdn.shopify.com/s/files/1/0431/9202/5249/files/kaguxadeguzatusojepad.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gaxasukazojolivuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/60965197638.pdf
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/vuxulalanariribowijaxilo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2448/1431/files/metabolismo_de_aminocidos_bioquimica.pdf
    • https://cdn.shopify.com/s/files/1/0433/4669/0203/files/arch_linux_live_cd.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/44241682422.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_off00006241.bin
a3174535149d68f8e46d3e9aa816e24711da136d00674e4484a196b7e0568043		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6241 5392 bytes
font_01_sfnt_off00007491.bin
944825c025e6623a81cc33a01fce48dc09d618e5e1be5a9d0feb823eed05d846		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7491 10048 bytes

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