Malicious PDF — malware analysis report

Static analysis result for SHA-256 e35584ff1a26c5f9…

MALICIOUS

PDF

50.7 KB Created: 2020-08-03 14:48:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fdcfbe997845e686aefd85ea20ee4bb SHA-1: f92e90709300827a8a2610663278a7f9ebc2b060 SHA-256: e35584ff1a26c5f96ccd7361da3a4ffaac9e2c2b50d0dfee1aa4afdbd2d2a102
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with the primary malicious redirector being ttraff.com. The document body suggests a lure related to 'Arduino projects ideas pdf'. The heuristic firings indicate that the PDF is designed as a link farm, likely to manipulate search engine results or to distribute further malicious content through the numerous Shopify-hosted 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.com/pify?keyword=arduino+projects+ideas+pdf
    • http://files.affordablebarndoors.com/uploads/1/3/0/7/130739369/mudupire.pdf
    • http://files.hometoaz.com/uploads/1/3/2/6/132696414/1456868.pdf
    • http://files.patoplace.net/uploads/1/3/2/6/132681516/ramuniki.pdf
    • http://files.divorcecoachaustin.com/uploads/1/3/0/7/130739510/varamunesuzopinaj.pdf
    • http://files.trappersrunningclub.com/uploads/1/3/1/6/131607164/658057.pdf
    • https://cdn.shopify.com/s/files/1/0427/6859/7158/files/gugamavizekanokosejuvi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/joxatoxigonaxokozufudivov.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdf
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/96692139944.pdf
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/how_to_insert_symbols_in_google_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/6764/5857/files/rigesit.pdf
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/88095015422.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/14286377929.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/43584874760.pdf
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/pogifase.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/fazaxoluzojol.pdf
    • https://cdn.shopify.com/s/files/1/0429/3964/6108/files/50640178599.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_off000089b7.bin
b2adf6e8ade6627323a2615e5d3e39dbd6a31a24a4316361ee1d95f0ace14e3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89B7 5184 bytes
font_01_sfnt_off00009b70.bin
eb24a064f4c21f35b4235061817425139f361e48b68116be0558312b2620ce9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B70 10056 bytes

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