Malicious PDF — malware analysis report

Static analysis result for SHA-256 fac9ef9015949856…

MALICIOUS

PDF

44.2 KB Created: 2020-07-10 03:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dfbe63f7bd169bc17de8033663caf25 SHA-1: 097dfeb63983e8b8042742a623381a497466e45a SHA-256: fac9ef9015949856b62de17e2ac139edf28a228132b1819118cf5385a7002f89
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/wb?keyword=baumer%20absolute%20encoder%20manual'. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution.

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/wb?keyword=baumer%20absolute%20encoder%20manual
    • http://files.raquelmeraki.com/uploads/1/3/2/7/132740860/3354846.pdf
    • http://files.marsal-solutions.com/uploads/1/3/2/6/132696621/be0f3bb339be3c.pdf
    • http://files.thefeltfactory.co.nz/uploads/1/3/0/7/130776841/xizixexa-dajawotubep-fekifomidele.pdf
    • http://files.younglifemanateecounty.com/uploads/1/3/1/3/131383889/5598364.pdf
    • http://files.stpetermodesto.org/uploads/1/3/1/4/131438448/9634887.pdf
    • http://files.lknailsandbeauty.co.uk/uploads/1/3/2/6/132681938/wovaxale.pdf
    • http://files.derrettphoto.com/uploads/1/3/2/6/132680852/bewam_wefavibu.pdf
    • http://files.umbrapoodles.com/uploads/1/3/0/7/130775752/7259487.pdf
    • https://xoroduwok.files.wordpress.com/2020/07/18221047765.pdf
    • https://fiteguma.files.wordpress.com/2020/06/jaxovi.pdf
    • https://jomuduxa.files.wordpress.com/2020/07/lesulaliwavigajaguzani.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wojilezufaguxulidumusad.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44368867506.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mirogorozizodixomalejog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20880330559.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexanenivoxepabulolud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.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_off00006fa9.bin
4f0cea2e715aca84757673c6d889c703b57aaa71b696d5dc5e889e5c4117b820		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA9 5108 bytes
font_01_sfnt_off000080e0.bin
cb661f5acfef8c6646746e42bdc76e632a11b22042cd106e2917c4dd2396fa9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80E0 10536 bytes

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