Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ceaa1f164b388d3…

MALICIOUS

PDF

33.0 KB Created: 2020-08-30 14:32:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d8a64155376f8f3f78440b754bdcfcc SHA-1: 373ba73658cc9d83abb02d74ce5b16a69cf4be93 SHA-256: 8ceaa1f164b388d3eea5213b13ac15b8733a8edda03654534cc88d3eaffc1532
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.club/wix?keyword=star+wars+3+vostfr'. This indicates a phishing or scam attempt, using a lure related to 'Star Wars 3 vostfr'. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. While most Shopify links are benign, the primary redirector link is flagged as malicious.

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.club/wix?keyword=star+wars+3+vostfr
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/2d_call_of_duty_zombies.pdf
    • https://cdn.shopify.com/s/files/1/0431/0115/9585/files/4956816710.pdf
    • https://cdn.shopify.com/s/files/1/0439/8999/1582/files/dixieland_jazz_trumpet_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0438/6275/3445/files/39188749277.pdf
    • https://cdn.shopify.com/s/files/1/0431/3881/0010/files/94224564521.pdf
    • https://cdn.shopify.com/s/files/1/0433/5550/4795/files/zunabuxuva.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/wutoveteg.pdf
    • https://cdn.shopify.com/s/files/1/0429/5216/3482/files/desilibigezoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7371/5870/files/91353701938.pdf
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/zedutunow.pdf
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/diagrama_de_causa_e_efeito_espinha_de_peixe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/gigogujimaviferuneruminu.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_off00004335.bin
0c1a01ed1843c3c37df54e3097476504fd320504295003fe4cf4f5415cdc0b0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4335 5148 bytes
font_01_sfnt_off000054d7.bin
8ba8aad2acec8c90c5c7e184a3973ab642bf7a93ad17475cb43d1d128c545344		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54D7 10204 bytes

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