Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fcabf6eaed99b09…

MALICIOUS

PDF

51.2 KB Created: 2020-08-09 02:11:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a86f449e45c350c7ab8d527b1af8c9f SHA-1: 6e7a57907c5886ebf68f2443486f2676699fde2e SHA-256: 1fcabf6eaed99b098fb99f5393f452f7f246522c62a9b5a812cf111fba381e9e
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, with the primary one also leading to a potentially malicious domain. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The file's purpose appears to be to lure the user to the 'ttraff.com' domain, likely for further exploitation or phishing.

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=aganglionic+megacolon+pdf
    • http://files.thecroftbourton.co.uk/uploads/1/3/0/8/130874125/wojaxikadiwonavuj.pdf
    • http://files.elizabethverver.com/uploads/1/3/0/7/130775023/xojulowuripun_makebetane.pdf
    • http://files.bainbridge-ny-rotary.com/uploads/1/3/0/8/130873829/9573480.pdf
    • http://files.jracdm.com/uploads/1/3/2/6/132680962/474c5e7c64.pdf
    • http://files.greensborolactation.com/uploads/1/3/1/8/131858287/jebogaf_bigewod_wimuxofofudibat_pedenekidoxuto.pdf
    • https://cdn.shopify.com/s/files/1/0432/7063/5680/files/wugupawomudizoxalonolizap.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/marriage_certificate_form_bihar.pdf
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/13437486170.pdf
    • https://cdn.shopify.com/s/files/1/0431/5634/0890/files/8701602843.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52876055892.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/rewamezedugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/34265735404.pdf
    • https://cdn.shopify.com/s/files/1/0433/8404/5719/files/livre_ahlam_mosteghanemi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/kuzotovomatajobasivogaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0396/0731/files/warcraft_rpg.pdf
    • https://cdn.shopify.com/s/files/1/0432/0159/3507/files/sikoxub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97098861098.pdf
    • https://cdn.shopify.com/s/files/1/0434/3365/6476/files/kazoju.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_off00008ae5.bin
d00ba7c3fa87faac5816fac08f1a2b1ee186789279a860a30dbb28121295e927
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE5 5192 bytes
font_01_sfnt_off00009c8c.bin
ab1c151eed2b52755184e50afd896bffccff786995802c34a18be691eea36592
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C8C 10160 bytes