Malicious PDF — malware analysis report

Static analysis result for SHA-256 232e1a15140d6184…

MALICIOUS

PDF

49.3 KB Created: 2020-08-08 18:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f0c3f7f067c2db87137a9b3c3944d5b SHA-1: 414dc74efead2958271118bc2c3a1b6340dddb05 SHA-256: 232e1a15140d6184f511bb9661274d7c87c7103c1d3a4e2e376dde19fa2c5373
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at `ttraff.com`. The document body, though garbled, contains text related to real estate sales and the `wkhtmltopdf` generator, suggesting a lure to disguise malicious intent. The primary attack pattern involves redirecting the user to malicious infrastructure via the `ttraff.com` URL, likely for phishing or malware 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=ventas+en+abonos+de+bienes+muebles+e+inmuebles+pdf
    • http://files.vertexflorida.com/uploads/1/3/0/7/130776745/164020.pdf
    • http://files.marlboroughsafetyforum.com/uploads/1/3/1/6/131606118/157965ad6.pdf
    • http://files.wolfchasecoc.org/uploads/1/3/1/4/131453065/cdd859804d00f32.pdf
    • http://mafijeluj.trailsandtrilliums.org/uploads/1/3/1/1/131164250/fixabetazu-pitosutoraj-zisanoni-jovalamefixefik.pdf
    • https://cdn.shopify.com/s/files/1/0434/7455/0950/files/fasaribale.pdf
    • https://cdn.shopify.com/s/files/1/0434/5095/7991/files/72822760677.pdf
    • https://cdn.shopify.com/s/files/1/0431/0918/7750/files/14136723083.pdf
    • https://cdn.shopify.com/s/files/1/0428/5464/5916/files/ruger_10_22_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/8203/1007/files/nevafuporonuze.pdf
    • https://cdn.shopify.com/s/files/1/0429/0114/3715/files/wifedakujebokow.pdf
    • https://cdn.shopify.com/s/files/1/0429/2712/8735/files/3997197151.pdf
    • https://cdn.shopify.com/s/files/1/0432/5592/2852/files/sosurotogu.pdf
    • https://cdn.shopify.com/s/files/1/0452/3019/4845/files/cellular_metabolism_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/monumegasuwipijuzu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52665001447.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_off00007ff4.bin
a8adf1791e48ee93e2e3673d87bc81bdb97e5c2669c87d2556cd580a1fdb8c98
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF4 5196 bytes
font_01_sfnt_off00009190.bin
eb9b650d3615c0cced742006334d1452e8f772a40219545dc08a4becb9c6e8c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x9190 11272 bytes