Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d0f6d611438410b…

MALICIOUS

PDF

39.0 KB Created: 2020-08-30 21:31:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c884da17309208d64720695f340cda3 SHA-1: cc31da44200522df7e045000fc1477fb39d929c0 SHA-256: 1d0f6d611438410bb6d6b412a7bc30f831d224456a7938592f07d9ef83d9f3bc
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wix?keyword=biblia+reina+valera+1960+para+celular', which is flagged as malicious. The presence of a link farm heuristic further indicates a malicious intent to redirect users to potentially harmful content.

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/wix?keyword=biblia+reina+valera+1960+para+celular
    • https://static.usrfiles.com/ugd/b8c837_9becf97edb5b47ac802ddac25e54f8ba.pdf
    • https://static.usrfiles.com/ugd/b8c837_17821927c5e34fd98c198a30765cdcdf.pdf
    • https://static.usrfiles.com/ugd/e2b09b_940f703687c34170ad38954c97311b67.pdf
    • https://static.usrfiles.com/ugd/e3ff21_40dc983d794346fc98f1abe40c88d23e.pdf
    • https://static.usrfiles.com/ugd/8ba634_7c70c039de3d4f5f94bd5ea6d02dff99.pdf
    • https://static.usrfiles.com/ugd/89c6ad_b4a2246e29d543b8a9dfef4a12edaf6d.pdf
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/57133450137.pdf
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/zumarun.pdf
    • https://static.usrfiles.com/ugd/6f7357_2a3ec6ebba754fa79f84ee49ae9b3408.pdf
    • https://static.usrfiles.com/ugd/0d089b_d09550af08164aaebe994376a8fb8788.pdf
    • https://static.usrfiles.com/ugd/8127dd_979328e3e69d43b4a2448adc9bae6fc6.pdf
    • https://static.usrfiles.com/ugd/b8c837_9800b51d04f245bdb5d3dc1c43cfac2a.pdf
    • https://static.usrfiles.com/ugd/822ecd_6675712a03f04c4a9524937d750e2f40.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_off00004b73.bin
361e8c077bb6748c5ef94c6e80e06e3ec4ccb10d04fb70c0287493ac56a0b209		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B73 5500 bytes
font_01_sfnt_off00005e2a.bin
2d1c02d7faeb7dad5af5d103f135926a0d4fd4e69f3a7da8959d46cf8e88466d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2A 3120 bytes
font_02_sfnt_off00006aad.bin
73d0194dab68e643446288401de96a4709e5a3dfd90b7eddb629b46e4da0bdd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAD 10564 bytes

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