Malicious PDF — malware analysis report

Static analysis result for SHA-256 b263e57d7a2238b8…

MALICIOUS

PDF

34.2 KB Created: 2020-09-01 12:29:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5946d904497cb82ce2206648ea2a91ce SHA-1: 3dc7b1fbef089663409c99e69e8d9d491af2e501 SHA-256: b263e57d7a2238b832d6f364df8ea4d56d795a4e54177f1ea408d502f4ad506d
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to a 'Hilti re 500 technical data sheet' and includes the malicious URL. This suggests a social engineering lure to trick users into clicking the link, which is likely part of a link farm designed to distribute malware or phishing 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=hilti+re+500+technical+data+sheet
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/revirilasan.pdf
    • https://cdn.shopify.com/s/files/1/0436/0146/1410/files/86221713141.pdf
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/18988190534.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/80816471789.pdf
    • https://static.usrfiles.com/ugd/0cd3a8_5c690143dbb940e487240fcb6339def2.pdf
    • https://static.usrfiles.com/ugd/4c1554_4c08dc3ff4724b67b9163e42955eb3d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_38cd90dd58504d1fadfffde7be757e50.pdf
    • https://static.usrfiles.com/ugd/90c678_5f948f3145b04ec3ae7bfd9aafe6141f.pdf
    • https://static.usrfiles.com/ugd/b8c837_a58955b17278475283872132fe14e640.pdf
    • https://static.usrfiles.com/ugd/5e81b9_2b84a84b59204410b76a68ccb92d4e18.pdf
    • https://static.usrfiles.com/ugd/9a242c_e260a5c657214541892d3cb04682d40e.pdf
    • https://static.usrfiles.com/ugd/b8c837_cda37eaa1d2243e7ad204dc883723ec4.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5c39ae288aa48338b4977a89dcd2e02.pdf
    • https://static.usrfiles.com/ugd/b8c837_472b0cba763d46308803ba4754990508.pdf
    • https://static.usrfiles.com/ugd/aff7ca_81e52b826589493989efb54dbe972b18.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_off00004873.bin
2d27fbaab6032154a9f9f1d77d582b5231cc83ca290186aea433315f7790686a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4873 5252 bytes
font_01_sfnt_off00005a44.bin
3f05442d84a86479c8f6a4602318b917e37e019ef94a973345730af603f30b26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A44 10136 bytes

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