Malicious PDF — malware analysis report

Static analysis result for SHA-256 35462cc185ef2382…

MALICIOUS

PDF

38.5 KB Created: 2020-08-20 07:51:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cc70c0afade706944c8aeef7e0eb01d SHA-1: 73c02401214760937a80f3d529fe206a1703e586 SHA-256: 35462cc185ef23827edc975677dc4e80d37ebffd18a6e2350a34e31c0633823d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links pointing to other PDF files, many hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination or distribute malware. The document body contains garbled text and a reference to 'android gameboy colour emulator', suggesting a lure. The overall structure indicates a link farm designed for SEO manipulation or to host 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.cc/pify?keyword=android+gameboy+colour+emulator
    • http://files.skydivetofino.ca/uploads/1/3/1/1/131163867/veziretej.pdf
    • http://liwokig.keikosensei.com/uploads/1/3/0/9/130969060/1962191.pdf
    • https://cdn.shopify.com/s/files/1/0429/6625/3724/files/kutilanuzat.pdf
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/majnu_kannada_movie_songs.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdf
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/19464873009.pdf
    • https://cdn.shopify.com/s/files/1/0433/9892/2403/files/wopalamedebatevofa.pdf
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/dometic_8500_awning_installation_manuals.pdf
    • https://cdn.shopify.com/s/files/1/0446/5822/9411/files/java_script_blogspot.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977390730.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/gisetib.pdf
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/tudurunivogijebudoluni.pdf
    • https://cdn.shopify.com/s/files/1/0434/0865/4492/files/fidajuvebujuzor.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_off00005874.bin
2e3c2aaa1cd4659e222550a3f87e7a13f696e9b0f0027c6be102b4c6a6f2406b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5874 5312 bytes
font_01_sfnt_off00006a6b.bin
5cb66ac431d08953cfcdcc750b2e77a3a15ac170af455f9cc62573f2b34e9666		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6B 10244 bytes

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