Malicious PDF — malware analysis report

Static analysis result for SHA-256 2417e082a89068b9…

MALICIOUS

PDF

55.4 KB Created: 2020-07-29 19:11:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4251dadb46c4d7f8b4fac1292734d40f SHA-1: 854c7858787959bd2870ab4f84cd08ae6b6c864b SHA-256: 2417e082a89068b97b28329065c93247da0b3d72f891c5c823a5f178bdb675e9
168 Risk Score

Malware Insights

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

The PDF file contains numerous links, suggesting a link farm designed for SEO manipulation. One critical heuristic indicates a malicious redirector link, and another highlights a browser extension installation lure. These elements combined suggest a social engineering attack aimed at tricking the user into visiting a malicious site or downloading a payload, likely disguised as a converter tool.

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pdf+file+to+word+converter+free+download+full+version
    • http://files.rabbitmountainlavender.com/uploads/1/3/1/4/131454216/menasomokovixa.pdf
    • http://files.kittyvera.com/uploads/1/3/2/3/132303041/a71ac20c071c.pdf
    • http://files.eaglepointirrigation.com/uploads/1/3/2/6/132681150/misidalobinilal.pdf
    • http://files.graciasgreenhouse.com/uploads/1/3/1/6/131636807/mexetaw_milibone_muvowifivido.pdf
    • http://files.checkmates-a2.org/uploads/1/3/1/6/131637589/pabim-mebepedugike-mevepak.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/tonevujakunivirakidelekev.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99913566500.pdf
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/78596689790.pdf
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/7328617894.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/58409167372.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/wipetixutorofofawivibig.pdf
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/82655175904.pdf
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/goribifete.pdf
    • https://cdn.shopify.com/s/files/1/0431/0558/3266/files/jipurowoni.pdf
    • https://cdn.shopify.com/s/files/1/0429/3630/3782/files/87756388619.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jexisobipa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/74974250598.pdf
    • https://cdn.shopify.com/s/files/1/0431/5021/3274/files/38966640405.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/
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/file

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009abd.bin
86defa8d826c99147bdbd4dcd6f98af50120aa1319a83d793f3d74aed98c8c72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9ABD 5052 bytes
font_01_sfnt_off0000ac06.bin
ab3b346fc2f76fd4d0d743dacc7e3283b30953f4fee765e91dc4cc9bc616bdd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC06 10476 bytes

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