Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7f0af8930d19c19…

MALICIOUS

PDF

35.6 KB Created: 2020-08-30 18:29:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 827d5a47702fb6fa809a5392f6b1638a SHA-1: 4b4ec479cb11ed35ed96976622ade7a68c22b183 SHA-256: a7f0af8930d19c196d5df77c35593da0435c23ae4b84e9809b58b381a9cdbff8
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=a+cry+in+the+wild+full+movie'. This URL, combined with the document body text referencing a movie title, suggests a social engineering lure to trick users into clicking the link. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, indicating a potential attempt to distribute malicious content or engage in SEO manipulation.

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=a+cry+in+the+wild+full+movie
    • https://static.usrfiles.com/ugd/b8c837_d307585f8fdc43e7ab79e7c39acc6d58.pdf
    • https://static.usrfiles.com/ugd/b8c837_d8216c9bf4324cf5874bee636da1fb24.pdf
    • https://static.usrfiles.com/ugd/b910ae_de8ad09884e6426f8600099068204919.pdf
    • https://cdn.shopify.com/s/files/1/0433/0812/2280/files/8664808998.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/worimesomelolasuvaxavole.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5142/files/tutivejitojemezata.pdf
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/rusoves.pdf
    • https://cdn.shopify.com/s/files/1/0435/2881/4760/files/ocaml_list_remove_duplicates.pdf
    • https://static.usrfiles.com/ugd/63d3ad_47fb57dbcfd241f094659067cc1f28f0.pdf
    • https://static.usrfiles.com/ugd/b8c837_4cea11174dbc44afa9a07ec8658a7a10.pdf
    • https://static.usrfiles.com/ugd/b8c837_3516c67845fd40e2adecda447aa46ce6.pdf
    • https://static.usrfiles.com/ugd/5bb01c_cba422f245004c9d89ddddc7a317f214.pdf
    • https://static.usrfiles.com/ugd/b8c837_08e756bc544b49d0911562dc1fd8912a.pdf
    • https://static.usrfiles.com/ugd/b8c837_bc75df98817d440eaba87af0d092cd52.pdf
    • https://static.usrfiles.com/ugd/b8c837_020fe300be4e4cbbadafe8ae2b3033d0.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_off00004d70.bin
84b3d6cd5ba6e272959190c6b58062d52ac62dde1a51a08071d47f4e9df5af0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D70 5116 bytes
font_01_sfnt_off00005ec0.bin
03d522227b28fa1f48a8e925f2646f15eb33e59d3871b2bd2b38f12a444859fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC0 10276 bytes

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