Malicious PDF — malware analysis report

Static analysis result for SHA-256 478ef56870714ad1…

MALICIOUS

PDF

122.6 KB Created: 2020-08-30 23:22:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d755bb66431fe5bb2ce0ae7a7fbd58b SHA-1: 8d1b556628aa09aeb51d6d2c6ac1bd4bb8c251ff SHA-256: 478ef56870714ad193ff54ab049b30b376f1b088f2ea3c7baf304a95653c71b0
150 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.cc'. This indicates the document's primary purpose is to lure the user to a malicious site. The presence of a PDF link farm heuristic further suggests a campaign to distribute malicious content. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=lion+de+la+nourriture+%25C3%25A0+jacksonville
    • https://static.usrfiles.com/ugd/b8c837_def380d5552e418d82c97d6d4a3e69fa.pdf
    • https://static.usrfiles.com/ugd/b8c837_2ea3711ed59f43fa8387ef0deb4c719f.pdf
    • https://static.usrfiles.com/ugd/ab059d_71b323d74965432b8941b59bd6edbbe4.pdf
    • https://static.usrfiles.com/ugd/3de8a6_45f4a3bb045f41df8560d63499f660a1.pdf
    • https://cdn.shopify.com/s/files/1/0436/8554/4089/files/71610065331.pdf
    • https://cdn.shopify.com/s/files/1/0433/2116/3941/files/moon_circle_druid_5e.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/kiwolarusir.pdf
    • https://static.usrfiles.com/ugd/b8c837_6a4a28552da14ee794c5e4c0b8485d81.pdf
    • https://static.usrfiles.com/ugd/5bb01c_41361d5177b64a5ea5972510e5cf3d73.pdf
    • https://cdn.shopify.com/s/files/1/0427/8134/3903/files/duvaxuzesijuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/gunadepugorebebukubina.pdf
    • https://cdn.shopify.com/s/files/1/0434/6386/8573/files/online_movie_ticket_booking_system_project_in_html.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_off00019128.bin
ba747285919c7d616d209f981d257d0611d95ab50fae60f9ac2c539647624a5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19128 5308 bytes
font_01_sfnt_off0001a2c6.bin
01e87966c4595b71bb3a3569ad06b17908a1211747c5d437a07b7db5596479ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A2C6 19212 bytes

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