Malicious PDF — malware analysis report

Static analysis result for SHA-256 d967181e01be25f5…

MALICIOUS

PDF

40.3 KB Created: 2020-08-30 10:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8186439eb0587fb07bcdb57dd75db117 SHA-1: 395172ac35fdc0d11431f2d8e63b571f6f6383fa SHA-256: d967181e01be25f503c1c44aee3da5c36dc8395a25bab1cce00df185f9a4c882
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 'https://ttraff.com/wix?keyword=reglas+de+valuacion+y+presentacion'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to trick users into clicking it for deceptive content.

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/wix?keyword=reglas+de+valuacion+y+presentacion
    • https://static.usrfiles.com/ugd/b8c837_ce009ef657864d7f8b0a84db86214aba.pdf
    • https://static.usrfiles.com/ugd/b8c837_e41db60785a940b79d36a42069d4c010.pdf
    • https://static.usrfiles.com/ugd/868401_83323238649246109cfe37c8535cfc84.pdf
    • https://cdn.shopify.com/s/files/1/0435/5234/2184/files/vudekuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/5325/2757/files/wumuzajipet.pdf
    • https://cdn.shopify.com/s/files/1/0441/1647/6056/files/airport_utility_5._6._1_mac.pdf
    • https://cdn.shopify.com/s/files/1/0448/3943/6449/files/minecraft_server_icons.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/backlash_in_gears.pdf
    • https://cdn.shopify.com/s/files/1/0428/1932/2022/files/jalixad.pdf
    • https://cdn.shopify.com/s/files/1/0440/1856/5270/files/tapipo.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_off00005e8a.bin
d70ae78ea71638338e0611a39af553a4710583cd08fb9792135a8174f8f063bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8A 5412 bytes
font_01_sfnt_off0000710d.bin
abcce1066ebf0431572493d7a2d3beceb890d35421c72464d9d8ea1856cb1f36
pdf-font-stream PDF embedded font (sfnt) at offset 0x710D 10352 bytes