Malicious PDF — malware analysis report

Static analysis result for SHA-256 a58ff625fc2df304…

MALICIOUS

PDF

45.8 KB Created: 2020-08-16 23:42:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fedd0b2188773d8523a0d9e24acd496a SHA-1: f1e35a6ab7a91eba79596872569124c1e66d4f88 SHA-256: a58ff625fc2df3049da7d8c7c7484e32fcaf0b556dcae5b2d712c11fb559469c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, a PDF link farm heuristic was triggered, suggesting the document is designed to host numerous external links, further supporting the redirection attack pattern. The embedded URL in the document body also points to the same malicious redirector.

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=definition+of+usefulness+pdf
    • http://files.galerietannousart.com/uploads/1/3/1/1/131163610/lisapunatolarir_liruwopimolofef.pdf
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/46677450904.pdf
    • https://cdn.shopify.com/s/files/1/0440/3465/4358/files/download_anglicanism.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/1687354590.pdf
    • https://cdn.shopify.com/s/files/1/0433/0743/4142/files/11645231993.pdf
    • https://cdn.shopify.com/s/files/1/0438/0118/2370/files/691345064.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/48203129813.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/45848363904.pdf
    • https://cdn.shopify.com/s/files/1/0437/8640/4000/files/53999471274.pdf
    • https://cdn.shopify.com/s/files/1/0431/7960/6177/files/belkin_router_monitor_software.pdf
    • https://cdn.shopify.com/s/files/1/0438/8998/3640/files/90423680293.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/sukasij.pdf
    • https://cdn.shopify.com/s/files/1/0428/6342/7751/files/80296741521.pdf
    • https://cdn.shopify.com/s/files/1/0431/4978/7285/files/normatividad_de_las_camaras_de_comercio_en_mexico.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/1/0437/8640/4000/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007912.bin
41b291ac37c2a833a5a2b5d8485a11587333b080127470d813eb61935c490d88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7912 4728 bytes
font_01_sfnt_off00008943.bin
5f6e6da10889eed56b4e5460597c373870cc6b15a3f96b22dca7adcf40eafe25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8943 9636 bytes

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