Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03f02153cad98a4…

MALICIOUS

PDF

42.8 KB Created: 2020-08-17 06:22:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 439e31d14da59af84fc746b639d19407 SHA-1: 38e66bb6a124199c9be6d3d37bad0cce575aa38a SHA-256: b03f02153cad98a484ed6991925adb6571e496b10b076c4ff92eaed8de32b0b6
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to a 'company introduction brochure'. The primary malicious link, https://ttraff.cc/pify?keyword=company+introduction+brochure+pdf, is likely intended to redirect the user to a phishing or malware distribution site. The presence of numerous other links, many hosted on Shopify, suggests a link farm or a broad distribution effort.

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=company+introduction+brochure+pdf
    • http://jafabebi.grantcountyinfair.com/uploads/1/3/0/7/130776499/ranitij.pdf
    • http://zotosu.brokenbowtravel.com/uploads/1/3/1/4/131406086/c2c19c69e67758.pdf
    • http://pamarosu.arcadesalvacioncarpinteria.com/uploads/1/3/1/4/131406821/8539689.pdf
    • http://files.145southwells.com/uploads/1/3/0/9/130969211/tetazupafojevit.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdf
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/tupiwag.pdf
    • https://cdn.shopify.com/s/files/1/0433/9426/9333/files/43130900999.pdf
    • https://cdn.shopify.com/s/files/1/0431/9939/8052/files/86299518780.pdf
    • https://cdn.shopify.com/s/files/1/0437/7057/7058/files/20628907659.pdf
    • https://cdn.shopify.com/s/files/1/0437/8309/4434/files/wumeberimaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/0600/9242/files/zanilojabubesuziruxek.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_off00006aa2.bin
3369d9eca8d22d2e72d4c8d04af4df48d7a04fa4502cf14243afe9a2044d29ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA2 5332 bytes
font_01_sfnt_off00007c8c.bin
2d371a8091b953271266d4583a10d8c2217cfb44c8527a74f61d60cb1d3aa08e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8C 9996 bytes

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