Malicious PDF — malware analysis report

Static analysis result for SHA-256 472f3593b7b84448…

MALICIOUS

PDF

35.7 KB Created: 2020-08-28 01:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cc16cc542189b1ca24cbebcaaaa046a SHA-1: 1d8d33a29bc788434bf0781781a30d1d3d99e6bd SHA-256: 472f3593b7b84448fbabda3c64aa5f4df34bdee2a9ff1c8c7630d99598932fd2
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a link to a known malicious redirector at 'ttraff.com'. This redirector likely leads to further malicious content, such as a phishing page or a malware download. The document body itself is heavily obfuscated but contains the same redirector URL. The presence of numerous other PDF links, many hosted on shopify.com, suggests a link farm or a method to obscure the true malicious destination.

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/pify?keyword=letra+da+musica+o+santo+o+justo+o+ve
    • http://xewoxigor.ruinenjunkie.com/uploads/1/3/1/3/131384279/9735354.pdf
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/gokusafefasisefibig.pdf
    • https://cdn.shopify.com/s/files/1/0429/5612/8412/files/88846346103.pdf
    • https://cdn.shopify.com/s/files/1/0434/4938/5126/files/encyclopedia_of_life_writing.pdf
    • https://cdn.shopify.com/s/files/1/0428/0965/5462/files/aqua_tech_30-_60_filter_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/9867/5102/files/capitalization_paragraph_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0436/6693/1865/files/read_breaking_dawn_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/neshaminy_movie_times.pdf
    • https://cdn.shopify.com/s/files/1/0438/4430/5056/files/71565795963.pdf
    • https://cdn.shopify.com/s/files/1/0444/0326/1606/files/89568881464.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_off00004b61.bin
e31996d4f4e263467c4ce115966ba234f39931d8d50317c1a16a4e2cd1b9edf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B61 5132 bytes
font_01_sfnt_off00005cc3.bin
f9ed78f9328dbe47464d93eebabe7f6356fd92189a42cb1433d29eedd0ff4f2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC3 11576 bytes

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