Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7db316b30f033de…

MALICIOUS

PDF

60.5 KB Created: 2020-08-19 17:39:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73f99689a815eabc7e1baa0f503f0206 SHA-1: 13beafa2f2bfcfbfb5fe86afa20d21e2ef7d43a6 SHA-256: c7db316b30f033de726c8887be97cb2a39f9548ce1e805682de8785e71b97410
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body contains text related to a movie title and the PDF generation tool, but no explicit instructions or further context for the malicious links.

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=pathala+bhairavi+old+tamil+movie
    • http://files.grahamenolablog.com/uploads/1/3/1/3/131378999/d27e09dde9.pdf
    • http://files.mydecorandgiftrep.com/uploads/1/3/1/3/131383544/815c9.pdf
    • http://korinewa.natureswaylabradorpups.com/uploads/1/3/1/3/131380505/1252908.pdf
    • https://cdn.shopify.com/s/files/1/0432/0552/5661/files/tivenikebozorufup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82973104521.pdf
    • https://cdn.shopify.com/s/files/1/0437/6828/3294/files/weloxawedetome.pdf
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/keranasozujepuvo.pdf
    • https://cdn.shopify.com/s/files/1/0438/3273/7942/files/wukab.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/kanatib.pdf
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/mosses_and_liverworts.pdf
    • https://cdn.shopify.com/s/files/1/0435/6649/7960/files/javefudimoxadu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/roosa_master_db_injection_pump_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/kewenoja.pdf
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/93452501718.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_off00009c7b.bin
90d12fe587246e62b104a05ddfd5e60730155c5d9bc22f81d7199a336e15e785		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C7B 5088 bytes
font_01_sfnt_off0000ad9d.bin
682d2aa437a8d05951a0d9241c8570147529137f0f444a4fb3624eb6b3d00159		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD9D 6112 bytes
font_02_sfnt_off0000c158.bin
826f4bbe3699904c508f798c0e8c6e8e69f0b7de423d5e0d9cdd154fed3958c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC158 10292 bytes

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