Malicious PDF — malware analysis report

Static analysis result for SHA-256 48041d8b2ee62aca…

MALICIOUS

PDF

41.5 KB Created: 2020-08-31 12:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff482f55465aa5fd18824b8c86947174 SHA-1: 273b1d7228899beda251f592d20069aae6bea964 SHA-256: 48041d8b2ee62aca45aacf2239f995883be0892c6bff051914362ee8b27bd5ca
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=fallout+shelter+2.+5+stranger+chance'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous links, with the primary one leading to a Shopify domain. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'Fallout shelter 2. 5 stranger chance', suggesting a lure to a malicious site.

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.me/wix?keyword=fallout+shelter+2.+5+stranger+chance
    • https://cdn.shopify.com/s/files/1/0439/1718/1083/files/foam_roller_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1218/files/fotutegoxane.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/wupomikaguresu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1803/files/93970531616.pdf
    • https://cdn.shopify.com/s/files/1/0449/3488/9627/files/formation_windev_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/seamless_pipe_schedule_chart.pdf
    • https://cdn.shopify.com/s/files/1/0441/2289/8584/files/bulnesia_sarmientoi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0895/8362/files/79443165553.pdf
    • https://cdn.shopify.com/s/files/1/0446/7880/7705/files/dvd_players_repair.pdf
    • https://cdn.shopify.com/s/files/1/0429/3797/4950/files/detective_conan_movie_2019_sub_indo_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/39855382011.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdf
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/65880397500.pdf
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/bangla_font_avro_keyboard.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_off00006388.bin
bb7616d3df2edcd814ff48da2e66ecf04254eb44eb4b9b8240fdc5312440ba9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6388 5304 bytes
font_01_sfnt_off00007596.bin
659ca5bda597eb7eab33ad524036e46c10cc352cc0763c5019eda88d1d3001ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7596 10420 bytes

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