Malicious PDF — malware analysis report

Static analysis result for SHA-256 776fbb82f5855e96…

MALICIOUS

PDF

43.7 KB Created: 2020-08-03 16:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70b177f9d19856996dd1e8b75bb53113 SHA-1: f8f3161082032ace222a7e6d36ed4c29d6790237 SHA-256: 776fbb82f5855e96eba04150b9ef57814c30e4ab58521dfb82dfada8e3c13fcd
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. This suggests the document is part of a link farm or SEO poisoning campaign designed to lure users to malicious sites. 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.cc/pify?keyword=adriano+gianturco+a+ci%25C3%25AAncia+da+pol%25C3%25ADtica+uma+introdu%25C3%25A7%25C3%25A3o+pdf
    • http://files.jazztheoryandpractice.com/uploads/1/3/1/4/131413678/kutukagijipav.pdf
    • http://files.saintveronicaparish.com/uploads/1/3/1/4/131407849/jifibomugi_gariv.pdf
    • http://files.neuroenlight.com/uploads/1/3/1/4/131438389/tilibumiba_nerikoposijobip.pdf
    • https://cdn.shopify.com/s/files/1/0433/1634/7035/files/kijunomidodekaxisuf.pdf
    • https://cdn.shopify.com/s/files/1/0440/0742/4158/files/297519363.pdf
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/juzidopusiridukepaniza.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/zoxod.pdf
    • https://cdn.shopify.com/s/files/1/0432/8099/0366/files/32640473280.pdf
    • https://cdn.shopify.com/s/files/1/0432/3321/4621/files/nimoniloxajoxekadesoma.pdf
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/falewivigukenafikegara.pdf
    • https://cdn.shopify.com/s/files/1/0430/5489/1161/files/discord_call_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/59167488903.pdf
    • https://cdn.shopify.com/s/files/1/0429/9928/3863/files/42113580145.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1549/files/lagupojusexe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005917.bin
bb1c72114a6d877eea740ce48d40a7a90f785740ed8adb6016d19de08bee2b9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5917 5752 bytes
font_01_sfnt_off00006bbf.bin
8f7f41c4281f0e4b3213f2c6174628f2304d9245d2dce7d6f3f5679b14ea146f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBF 12296 bytes
font_02_sfnt_off000090d0.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90D0 4324 bytes

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