Malicious PDF — malware analysis report

Static analysis result for SHA-256 24656cf752547af5…

MALICIOUS

PDF

45.8 KB Created: 2020-08-17 00:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 545009447cfe6ee477227f29c7c44636 SHA-1: c3b642de6e24b9143658af6af29b5fe5a9ca86b0 SHA-256: 24656cf752547af5ed211f3fc4f4ced36bed27df1e09907a4592f4dc6f762623
128 Risk Score

Malware Insights

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

The PDF document contains a mass external link farm, with many links pointing to Shopify domains and several other unknown domains. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=avakin+life++for+pc', is identified as a known malicious redirector. The presence of a visual download button lure further supports a malicious intent to redirect the user to potentially harmful content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=avakin+life++for+pc
    • http://files.parkcitybrewery.shop/uploads/1/3/1/4/131437079/vafutofuside_puxawos_simesokaluv_nakimowatafawin.pdf
    • http://files.orientation.fis.hk/uploads/1/3/2/7/132740424/nuduxexovevepigikipi.pdf
    • http://lizuzib.theboho.ca/uploads/1/3/0/7/130739220/ranonepinejadig.pdf
    • http://mevakeke.credit-hours.com/uploads/1/3/0/8/130814328/db19873f3.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/build-_essential_ubuntu_package.pdf
    • https://cdn.shopify.com/s/files/1/0434/0963/7533/files/loliwijigosiped.pdf
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/62785170745.pdf
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/zafolijaxubegedebigivopo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/danedogorolulefumatexa.pdf
    • https://cdn.shopify.com/s/files/1/0452/4756/1890/files/puvulunekivolenipa.pdf
    • https://cdn.shopify.com/s/files/1/0436/1384/7714/files/36078663548.pdf
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/55322629047.pdf
    • https://cdn.shopify.com/s/files/1/0430/7304/4634/files/66762464687.pdf
    • https://cdn.shopify.com/s/files/1/0432/3259/2040/files/bafupuxizovele.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_off0000754b.bin
26bd02e9b009d3b0591c05dbb07bf13bc0c2a042dc699d23b3c6fded0b015ab4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x754B 4944 bytes
font_01_sfnt_off00008637.bin
ed6a9d337d18cc73abbdf02d86272d5f6bd1b6187500b858ab6f49e1eb28b23f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8637 10744 bytes

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