Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6563986e071224e…

MALICIOUS

PDF

50.1 KB Created: 2020-08-22 08:48:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b654dd698beffab5e74714c4e8a16ca SHA-1: 59421ad8b2ec004bcd53ef93ddc5e15ff0bca3a0 SHA-256: a6563986e071224e0552f525ad4221dfb283deb4a61a682dd4b2a8eb17258278
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector link to 'ttraff.com'. Another critical heuristic indicates a link farm structure, suggesting the PDF is designed to drive traffic to external sites. The presence of many Shopify-hosted PDF links, while some are benign, is part of the overall link farm strategy. 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.com/pify?keyword=alan+rickman+robin+hood+performance
    • http://matubu.rentalcottageontario.com/uploads/1/3/2/3/132303382/6780528.pdf
    • http://files.ygteducationalservices.com/uploads/1/3/1/1/131164431/0169c2ff075.pdf
    • http://xafoju.somalimuseum.org/uploads/1/3/2/7/132710621/nalega_wemegok_sodusituniwag.pdf
    • http://files.sorgsportandwellness.com/uploads/1/3/1/3/131379789/rokakinetudirati.pdf
    • https://cdn.shopify.com/s/files/1/0436/9573/4937/files/21647906404.pdf
    • https://cdn.shopify.com/s/files/1/0435/4464/1695/files/salojukibumeluxufafu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19441108854.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/22175393759.pdf
    • https://cdn.shopify.com/s/files/1/0433/3332/0872/files/mojaninisexutaxejatugisi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3687/6695/files/61332274953.pdf
    • https://cdn.shopify.com/s/files/1/0434/5521/7814/files/68534567491.pdf
    • https://cdn.shopify.com/s/files/1/0428/2351/6323/files/zideremoboboriv.pdf
    • https://cdn.shopify.com/s/files/1/0428/8947/8307/files/fegivuvele.pdf
    • https://cdn.shopify.com/s/files/1/0447/5614/0186/files/addiction_is_a_brain_disease_and_it_matters.pdf
    • https://cdn.shopify.com/s/files/1/0432/2784/0669/files/vopikekugi.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_off00008540.bin
5be68dc56f716157e7c5b3cf7e6190ce799694de8e38ab5420cb281829a40a10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8540 5408 bytes
font_01_sfnt_off00009774.bin
ee943a3bdf5af5ddb28822c28e831e860ba2d8017be6282e5b7aa52a9c4b4383		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9774 10580 bytes

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