Malicious PDF — malware analysis report

Static analysis result for SHA-256 a48965fa32850098…

MALICIOUS

PDF

40.6 KB Created: 2020-08-04 19:21:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8acf233b11d05ccf0d0ae5cae44e5689 SHA-1: 55d2fab19aafac61401bd959c6b366c36e82088f SHA-256: a48965fa32850098163405d4ff97f7fefed054478fd82de4fdb9e8099c1a173f
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains references to 'cctv camera system pdf' and numerous URLs pointing to Shopify and other domains, suggesting a link farm or SEO poisoning tactic to attract victims. The primary intent appears to be directing users to malicious infrastructure via the embedded link.

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=cctv+camera+system+pdf
    • http://files.jkaufmanstudios.com/uploads/1/3/0/8/130873708/rozega.pdf
    • http://wazavobi.moundridgelumber.com/uploads/1/3/0/8/130814423/8972762.pdf
    • http://files.mallincam.net/uploads/1/3/0/7/130740017/8b83bf8.pdf
    • https://cdn.shopify.com/s/files/1/0428/1561/9239/files/3835092919.pdf
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/10385398197.pdf
    • https://cdn.shopify.com/s/files/1/0432/5769/2315/files/95004864606.pdf
    • https://cdn.shopify.com/s/files/1/0436/2010/6404/files/naruto_shippuden_episode_370_english_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0430/9617/8845/files/sajalufaxazisezovoka.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jamitaribigonekadori.pdf
    • https://cdn.shopify.com/s/files/1/0439/2815/8363/files/1506806935.pdf
    • https://cdn.shopify.com/s/files/1/0428/8577/5519/files/46674073669.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/68875987784.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/10429531101.pdf
    • https://cdn.shopify.com/s/files/1/0433/3889/1419/files/gomejusakibawani.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/99454658009.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/lizasojiwil.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_off00006272.bin
ba11e9db1a79caf0e8cb9dadf9e42e49939c72c624739c2e71bc3b24e6d7f009		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6272 5336 bytes
font_01_sfnt_off0000748e.bin
540d8f9c75cab01ce1b8bd54d8522fe3e4befad2dfef16eacabb0481e93d27ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x748E 9764 bytes

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