Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd0c07b31f0b0570…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 21:06:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d8f51784db8d4201e23dc81b3f7cf63 SHA-1: e59652160d73f541548b1fdc329d331c9be058c9 SHA-256: dd0c07b31f0b0570b7822ea4c09056f4980d06a8769881b88c21662980d96429
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector link to 'ttraff.ru'. Another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute malicious content or engage in SEO manipulation. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the attack pattern.

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.ru/pify?keyword=soma+ark+simulation
    • http://files.moriahit.com/uploads/1/3/0/7/130776225/xorozoxekedu-wewuxubewog-labujoj.pdf
    • http://files.maidoecuador.com/uploads/1/3/1/8/131871568/pebaxuz.pdf
    • http://files.jouhlan.net/uploads/1/3/0/7/130739654/sixaxukake.pdf
    • http://files.littlebearlabradors.com/uploads/1/3/1/3/131383775/9542745.pdf
    • https://cdn.shopify.com/s/files/1/0433/1523/2921/files/41868989398.pdf
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/kuwufo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0381/3781/files/warofodizix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62374455636.pdf
    • https://cdn.shopify.com/s/files/1/0430/6052/7253/files/jumerol.pdf
    • https://cdn.shopify.com/s/files/1/0436/5064/6169/files/kafka_reset_offset.pdf
    • https://cdn.shopify.com/s/files/1/0434/1507/7022/files/.pdf
    • https://cdn.shopify.com/s/files/1/0436/9770/1032/files/60765605941.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/dopopumisileni.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/
    • https://cdn.shopify.com/s/files/1/0432/241

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fab.bin
863e40a4211b6fd141078eb527ab866940e6055c601ff49bf166d4105daa376b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAB 5000 bytes
font_01_sfnt_off00008090.bin
8b320629340cf0307a7b5b6f0b9d415befa7b7bd6bca1005946c7956c4679026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8090 10144 bytes

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