Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fea6638545a136a…

MALICIOUS

PDF

37.2 KB Created: 2020-08-10 16:48:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b192d7996ff94f4cce07848feb4ef45 SHA-1: e40e4e4d1cc4612a7c0d3a4b6f0a6a809b0a2b9e SHA-256: 1fea6638545a136a2ea6715cd9ffc1e55dd889f486121c53cdda568e779ea02b
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate search results, with the primary link leading to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=stats+sa+census+2020+results+pdf', which is flagged as a malicious redirector. The presence of numerous other links hosted on Shopify and other domains suggests an attempt to obscure the malicious destination and potentially leverage SEO tactics for 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.com/pify?keyword=stats+sa+census+2020+results+pdf
    • http://files.katescandleco.com/uploads/1/3/1/4/131483108/sugidirabapetaxalase.pdf
    • http://sutiwewu.beamaven.org/uploads/1/3/1/0/131069934/pobizineratalaw.pdf
    • http://files.alternativechefnc.com/uploads/1/3/1/8/131858481/remexara-nivumibaz-pedumusube-lawanumebi.pdf
    • http://files.bulleysoccer.com/uploads/1/3/1/4/131452867/dobexen_kuwaz_lidufopedotif.pdf
    • https://cdn.shopify.com/s/files/1/0431/7321/6412/files/anorexia_management.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81667611697.pdf
    • https://cdn.shopify.com/s/files/1/0433/9204/1118/files/fallout_3_enb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdf
    • https://cdn.shopify.com/s/files/1/0434/7101/2006/files/how_to_arrange_pages_in_file_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/scipy_confidence_interval.pdf
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/2784234684.pdf
    • https://cdn.shopify.com/s/files/1/0437/6693/9799/files/jeff_beck_net_worth.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/negamatudu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1999/2222/files/fajisazigokupuxubarivo.pdf
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/84495944898.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_off00005267.bin
f58a1e1c9f53181c69cb52b3393fd7f5af7a4a84427ac1ae5771b9645a64c40b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5267 5528 bytes
font_01_sfnt_off00006532.bin
1726e62893c56593ba60f5953dadcd78bf72747b965009a0615abcb667cadddd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6532 10260 bytes

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