Malicious PDF — malware analysis report

Static analysis result for SHA-256 daf3ed4d0977be0e…

MALICIOUS

PDF

48.0 KB Created: 2020-08-03 09:37:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b35329b0ac19ce38a55121725d0d45a2 SHA-1: fceaa3bf707b720539d185da2d3f8a173a583154 SHA-256: daf3ed4d0977be0e53a618d35fe9adc3df178d59aaf4e6d48ef7efc491cd736b
128 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 pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to external PDFs, many hosted on 'cdn.shopify.com'. The document body also contains the malicious URL and a call-to-action phrase, suggesting a lure to trick users into clicking the link for a fake download.

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.com/pify?keyword=nj+permit+test+cheat+sheet+pdf
    • http://files.iphoneonestop.com/uploads/1/3/1/3/131380626/woselezesodaxe_sikejaxejojat_pobutivikoxa_mogesuwumo.pdf
    • http://files.backwoodsdogboxes.com/uploads/1/3/1/3/131398097/a1b1f66758.pdf
    • http://files.freedom2flyda.com/uploads/1/3/1/0/131070633/nevonu.pdf
    • http://files.morganvalleycandles.com/uploads/1/3/1/1/131163846/6676581.pdf
    • http://files.priestessjedaya.com/uploads/1/3/0/7/130738955/bewonafikoligawemin.pdf
    • https://cdn.shopify.com/s/files/1/0436/5778/9593/files/minecraft_the_hidden_versions.pdf
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/tejopipiwefarin.pdf
    • https://cdn.shopify.com/s/files/1/0431/7816/4384/files/xerajibawewo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/zajetopawimatevifum.pdf
    • https://cdn.shopify.com/s/files/1/0435/4605/0728/files/mojotiborolu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/xulewutewali.pdf
    • https://cdn.shopify.com/s/files/1/0433/3525/4171/files/65548827273.pdf
    • https://cdn.shopify.com/s/files/1/0435/5109/6993/files/75210100984.pdf
    • https://cdn.shopify.com/s/files/1/0434/0026/5878/files/under_the_dome_stephen_king.pdf
    • https://cdn.shopify.com/s/files/1/0431/4572/4055/files/tarutovoku.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/roxaxurod.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1034/files/rajoxutivomasinawum.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7904/files/mefoxifodolume.pdf
    • https://cdn.shopify.com/s/files/1/0434/5665/9621/files/60919470684.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_off00007bec.bin
b78eed0a13e6803b1198d12b6de6f98140f565b86b4f8158c935225bbbe58223
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BEC 5408 bytes
font_01_sfnt_off00008e31.bin
baebbdc8cfba6b61a9d73a860e17cc458a708419159a1423d9c0bfbde62c92d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E31 10628 bytes