Malicious PDF — malware analysis report

Static analysis result for SHA-256 973a8af24583d4d7…

MALICIOUS

PDF

46.6 KB Created: 2020-08-02 11:13:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f7ecb24372f5ce17d8bb579a95d6a66 SHA-1: fbb9d2002eac89f2667b425ab0530fadf284dee6 SHA-256: 973a8af24583d4d7be460194336c9c9074e0e4a512d3cc95dd90901e11710279
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 external PDF files hosted on various domains, including Shopify. One of the primary links redirects to a known malicious redirector. This indicates a likely attempt to lure users to malicious content through a link farm, potentially for phishing or malware distribution.

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.ru/pify?keyword=reverse+foil+method
    • http://files.bepureinsideandout.com/uploads/1/3/1/4/131438888/c6f453eec687153.pdf
    • http://files.theessaydoctor.com/uploads/1/3/0/7/130738741/c3faa9c4b4e8.pdf
    • http://files.hkluxco.com/uploads/1/3/2/6/132683014/tolidikuwa-vebumik-suvajujo-limetesave.pdf
    • https://cdn.shopify.com/s/files/1/0428/4969/7959/files/mubuxeditajisu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9385/9231/files/nokiginozezajo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1402/8450/files/23252995609.pdf
    • https://cdn.shopify.com/s/files/1/0431/8560/2721/files/11217022603.pdf
    • https://cdn.shopify.com/s/files/1/0433/4652/6376/files/44150518916.pdf
    • https://cdn.shopify.com/s/files/1/0431/2770/1655/files/wegopigurokebazexozeb.pdf
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/www._pearsonitcertification_register.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/52808407262.pdf
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/tesijiwigafokatagobonox.pdf
    • https://cdn.shopify.com/s/files/1/0432/1237/4174/files/hackintosh_boot_flags.pdf
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/jojeputaguki.pdf
    • https://cdn.shopify.com/s/files/1/0433/2558/7610/files/66740258071.pdf
    • https://cdn.shopify.com/s/files/1/0428/8803/6515/files/minecraft_mob_spawn_light_level.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_off000070f3.bin
32708792996f51ea57f7ff0fcc28f44f5b0926d929b070f6085eebd31fac899a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F3 5004 bytes
font_01_sfnt_off000081d7.bin
2227b023262e4b76f228f8f8fcef0f3cdbb47563c82344014f10a7af1bbcf625		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81D7 13660 bytes

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