Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ca055ef0358dc46…

MALICIOUS

PDF

41.8 KB Created: 2020-08-30 23:42:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45c280ba13c18a9c0d84c7c3a72dd84a SHA-1: 2e8b7695c264c54f07959cf144d81ab090643a91 SHA-256: 1ca055ef0358dc46c64620aaabaa13ec22b01846170f2995d6f6b6da4fa7563a
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains text related to 'native instruments fm8 torrent' and a URL that appears to be a redirector. This suggests the document is designed to trick users into downloading software via a malicious link, likely for illicit purposes.

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.cc/wix?keyword=native+instruments+fm8+torrent
    • https://cdn.shopify.com/s/files/1/0438/2618/4352/files/16278886431.pdf
    • https://cdn.shopify.com/s/files/1/0435/6148/4437/files/97643381953.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/77372511053.pdf
    • https://cdn.shopify.com/s/files/1/0434/4931/9577/files/portfolio_template_ppt.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a4c2a3206e74988a977902c2f6c2f71.pdf
    • https://static.usrfiles.com/ugd/0d089b_c582e69e829a41cdabe995ca39985427.pdf
    • https://static.usrfiles.com/ugd/704566_76dcefba6f2e49eeb1d5f3a9bbe57fca.pdf
    • https://static.usrfiles.com/ugd/b8c837_91508e7358304576842ae55e365186eb.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a52eb78221f4fe49f00f493dab48e00.pdf
    • https://static.usrfiles.com/ugd/4ae4db_8d5c510eeceb405f86b4f8d09508e370.pdf
    • https://static.usrfiles.com/ugd/b8c837_9dc96796af0d4b2895c31bd864571d53.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf71010f633e4f8f9dcf5413e4d7993d.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fe6e23ca9a04f1699d0d53e64c6856c.pdf
    • https://static.usrfiles.com/ugd/74e9cf_5fbc143327de40d1ac3c830db0fe577d.pdf
    • https://static.usrfiles.com/ugd/345929_aba4f3fb055744bcbbc5e0027c1a655e.pdf
    • https://static.usrfiles.com/ugd/b8c837_9861b9e5a22748e091115c8e140b1ca8.pdf
    • https://static.usrfiles.com/ugd/b8c837_da29784fddc941709d1303eb22aad9c3.pdf
    • https://static.usrfiles.com/ugd/e2c6c1_5cb6eb50bea043d28ff9f22980668820.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_off00006693.bin
feb9fe80b7523712d31c271fca1d7773933f477866fd8c17f0df7d3621708d19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6693 5104 bytes
font_01_sfnt_off000077e3.bin
85b80e27489f76982d9e7cc06904bf68f18c49aa0b0dcd25517939a235a3c30c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77E3 10128 bytes

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