Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb714391b4ef88b3…

MALICIOUS

PDF

43.8 KB Created: 2020-08-03 06:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53e34ceadff0ed488592909ab57ee03b SHA-1: b31974c2c6f0e631a2aaa145f228a47a2254ec7d SHA-256: eb714391b4ef88b3ac2f4147d8d2251aaca3295732eff083ac2aa60559d261fb
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=seaborn+color+palettes', which is likely intended to lead the user to malicious content. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs, many hosted on Shopify. This suggests a phishing or redirection campaign.

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=seaborn+color+palettes
    • http://files.campallypally.club/uploads/1/3/1/0/131070178/7521815.pdf
    • http://files.eliowellness.com/uploads/1/3/0/9/130969424/vopebix.pdf
    • http://files.burbeeplace.com/uploads/1/3/2/8/132815343/mibuduradinog.pdf
    • http://files.gwendolyndanielsmusic.com/uploads/1/3/1/4/131452804/kuvivux-jokolilu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8982/0836/files/mozomibogipe.pdf
    • https://cdn.shopify.com/s/files/1/0436/3111/6448/files/63058752754.pdf
    • https://cdn.shopify.com/s/files/1/0430/9024/7829/files/xatiwuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/1206/3391/files/lupukifusijisexomibatokij.pdf
    • https://cdn.shopify.com/s/files/1/0440/5451/1766/files/rs_aggarwal_quantitative_aptitude.pdf
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/20755968064.pdf
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/topafixogapelavufo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/95304725304.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/twilight_online.pdf
    • https://cdn.shopify.com/s/files/1/0435/3294/3519/files/logebaravo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/duvavogev.pdf
    • https://cdn.shopify.com/s/files/1/0434/3716/2657/files/99957101047.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/dewomatarolokakutafago.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_off000064d1.bin
5ea2c57d8d5b79a8d744d95cd24bbd9bb78b1469894fd2b0c9dd8687f3806897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64D1 5168 bytes
font_01_sfnt_off0000766d.bin
d7e2bbca9cea5513d0be461d87ff35e26cc843db88731cbf4d8abb294438e227		 pdf-font-stream PDF embedded font (sfnt) at offset 0x766D 14052 bytes

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