Malicious PDF — malware analysis report

Static analysis result for SHA-256 df5f7a9ab62ead9f…

MALICIOUS

PDF

47.9 KB Created: 2020-08-22 05:01:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 111c83226c08f016c3e13760d37c2cfe SHA-1: 4c3594472591f77ac9fed2f49bf2cfa16ddd690b SHA-256: df5f7a9ab62ead9f3d384ea6579363da98f8d9add20a5eb1d42de34d0774e053
160 Risk Score

Malware Insights

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

The PDF contains a link that redirects to ttraff.ru, which is flagged as a malicious redirector. Additionally, the document exhibits characteristics of a link farm, with numerous embedded URLs pointing to Shopify domains, likely for SEO manipulation or to obscure the true malicious destination. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document's content is designed to trick users into installing software, a common social engineering tactic.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.ru/pify?keyword=anime+couple+wallpapers+for+android+mobile
    • http://files.hvcresearch.com/uploads/1/3/0/7/130776249/vorekagepal.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9397/files/auditoria_administrativa_alfonso_amador_sotomayor.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/is_multiboxing_allowed_in_wow.pdf
    • https://cdn.shopify.com/s/files/1/0429/0274/9347/files/macbeth_graphic_novel_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/41078170744.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/73556507666.pdf
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/76356770072.pdf
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/jolizemewirekim.pdf
    • https://cdn.shopify.com/s/files/1/0434/5869/1237/files/86099977785.pdf
    • https://cdn.shopify.com/s/files/1/0437/7598/3778/files/56060124343.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_off000070f5.bin
0c54fa9fbe719c1b29c4d2a6f54a45ffc86d12051a4e81c0060cd72e728d2c71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F5 5324 bytes
font_01_sfnt_off000082e4.bin
08f6d9cbd60397d55b08c19b5f0c6cde9861fedcf53080dae12aa81007e107d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82E4 9948 bytes
font_02_sfnt_off0000a4e9.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E9 4324 bytes

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