Malicious PDF — malware analysis report

Static analysis result for SHA-256 245317c190db4716…

MALICIOUS

PDF

47.1 KB Created: 2020-08-18 21:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85f79633a82474d64d9f47e0f174cb1e SHA-1: fbf223c817c6e4250897c28d3fbe161afa7cc4fe SHA-256: 245317c190db4716f34a07692c6e1aa496928e073d0af042df5bd2df002d582f
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to a medical program agreement form. The primary malicious URL identified is ttraff.cc, which likely serves as a gateway to further malicious content. The presence of many external PDF links, some pointing to Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious PDF.

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.cc/pify?keyword=addyi+rems+program+patient-+provider+agreement+form
    • http://files.carathelifecoach.com/uploads/1/3/1/3/131383977/vepifenijijagi.pdf
    • http://files.darlfinne.com.au/uploads/1/3/1/4/131437775/ed94e629038.pdf
    • http://files.cristiansulea.com/uploads/1/3/1/6/131606408/regokimotufatosuz.pdf
    • http://josowela.oldbaldyhuntclub.com/uploads/1/3/0/7/130775940/kijekomo.pdf
    • http://files.rone.studio/uploads/1/3/2/3/132303351/pidap-fusukuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/baruxeded.pdf
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/ctet_answer_key_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5656/1318/files/principales_causas_de_la_contaminacion_del_aire.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/d_d_5e_oathbreaker.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3760/files/zevonerafuwajife.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/63143538971.pdf
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/apc_smart_ups_3000_rack_mount.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/72962957582.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdf
    • https://cdn.shopify.com/s/files/1/0437/9633/2705/files/robonik_biochemistry_analyzer.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/starting_a_blog_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0448/5431/3122/files/49669858415.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdf
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/14697781762.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_off0000789c.bin
a87bb4b094ee78214b1c167103c92971ea223f3583fa0ddd89bf1f8bfa23b978
pdf-font-stream PDF embedded font (sfnt) at offset 0x789C 5512 bytes
font_01_sfnt_off00008b57.bin
3b609cb7512a6552b55bc0043f83deed40df3a04af36a17effe7e2a96b380d0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B57 10468 bytes