Malicious PDF — malware analysis report

Static analysis result for SHA-256 40d0d60ee45c057c…

MALICIOUS

PDF

40.3 KB Created: 2020-08-17 03:14:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42294bd669e622db5d50636f966cafbb SHA-1: 3d4d60b06afdc991febc6fe6181b5dbfb7b3a082 SHA-256: 40d0d60ee45c057c3756c7f50412430c3416640cdb6e72768fd64a700714e70b
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to 'ttraff.cc', which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious site. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed for SEO manipulation or traffic redirection. No scripts were extracted, and the primary malicious activity appears to be the redirection via the embedded URL.

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/pify?keyword=plastic+corrugated+roofing+sheets+how+to+cut
    • http://zomibofux.gracechurchoftemeculavalley.com/uploads/1/3/1/4/131452883/fomam.pdf
    • http://kokopagex.businesstodaynewsletter.com/uploads/1/3/2/6/132681352/jezuxoneduwemevuj.pdf
    • http://files.moniquemccrayjackson.com/uploads/1/3/0/8/130813108/5b95fd006b.pdf
    • http://files.reemslovenia.com/uploads/1/3/1/3/131398174/kosivi-fumijigepivupi-kekugekeje-siradatej.pdf
    • http://zajag.daffodilacres.com/uploads/1/3/0/7/130776818/degasakepidetipexuka.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/52406767767.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/giboxazakozumugixugekifi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47878122177.pdf
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/brinzolamida_bula.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7746/files/79177830210.pdf
    • https://cdn.shopify.com/s/files/1/0432/8102/3132/files/54633626673.pdf
    • https://cdn.shopify.com/s/files/1/0434/4663/2615/files/canada_study_visa_form.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_off00005ff9.bin
34a6cb35740bd23d533ef697ea3187e859a02e414588fff94e12bb49902b968f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF9 5376 bytes
font_01_sfnt_off0000723f.bin
9da98176b118e40a137607131dd699fbf83a732f814ecd45f5cb3844d355020d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x723F 10024 bytes

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