Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3132356c7a10b2d…

MALICIOUS

PDF

44.4 KB Created: 2020-08-06 21:13:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63e42d23bdc7788adb88926be3a15cd7 SHA-1: 787f49984a86611802d9b852c67d9df44da56b19 SHA-256: c3132356c7a10b2d6fdcc000f8d94b2e87458ad3b3499c91277bf86d185b72b1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is embedded within the document body, disguised as a 'blood type a diet plan pdf'. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify-hosted PDFs. The primary intent appears to be redirecting the user to a malicious site, likely for phishing or to download further malicious content.

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/pify?keyword=blood+type+a+diet+plan+pdf
    • http://doguboja.beyondazzlevents.com/uploads/1/3/0/7/130776791/7155892.pdf
    • http://files.rocheblackbeltacademy.com/uploads/1/3/1/4/131437584/3080975.pdf
    • http://fizadu.flotillahyves.com/uploads/1/3/2/6/132696212/9607219.pdf
    • http://files.hamiltonproperties.net/uploads/1/3/1/4/131438245/3558045.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5686/files/90756090898.pdf
    • https://cdn.shopify.com/s/files/1/0434/7333/8533/files/90528144790.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/japun.pdf
    • https://cdn.shopify.com/s/files/1/0438/1881/1552/files/angular_ui_autocomplete.pdf
    • https://cdn.shopify.com/s/files/1/0440/3301/5958/files/cambridge_checkpoint_mathematics_coursebook_9_answers_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/delidupupukomojik.pdf
    • https://cdn.shopify.com/s/files/1/0432/1620/8036/files/16099524874.pdf
    • https://cdn.shopify.com/s/files/1/0435/0876/0735/files/gufebopomenawod.pdf
    • https://cdn.shopify.com/s/files/1/0431/0715/6128/files/87978385778.pdf
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/71994873413.pdf
    • https://cdn.shopify.com/s/files/1/0438/1881/1552/files/52178306377.pdf
    • https://cdn.shopify.com/s/files/1/0430/7750/1095/files/61238099579.pdf
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/12686489641.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/
    • https://cdn.shopify.com/s/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070d2.bin
2cfbf8a29f4fadc88f77c4182ffa8f8b1e34692848f252ac1ff66841821ff815		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70D2 4912 bytes
font_01_sfnt_off000081b3.bin
0ccdeb1ea9de8b62838f7d9923544a8536a22f562b5fa02347c28e5c52260f3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81B3 10172 bytes

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