Malicious PDF — malware analysis report

Static analysis result for SHA-256 a26bdc5ec2a2e996…

MALICIOUS

PDF

34.9 KB Created: 2020-08-30 04:37:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c48e175d9a3f9b6f22495f0de31a739 SHA-1: d3c39bbf01d7233cb1f172873f9c0a5dcbd26b85 SHA-256: a26bdc5ec2a2e996a6cd046e5aaa4393f920c9c11299c591bd10b705f374893c
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, specifically pointing to 'https://ttraff.cc/wix?keyword=parkside+air+compressor+spare+parts'. This URL is presented within the document body, disguised as information about Parkside air compressor spare parts. The PDF also exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify and static.usrfiles.com domains, likely to improve search engine ranking for the malicious 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.cc/wix?keyword=parkside+air+compressor+spare+parts
    • https://cdn.shopify.com/s/files/1/0436/7358/3781/files/99099533087.pdf
    • https://cdn.shopify.com/s/files/1/0463/0750/8381/files/35725437227.pdf
    • https://cdn.shopify.com/s/files/1/0430/9411/4457/files/67219777609.pdf
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/zasokipifateporumav.pdf
    • https://static.usrfiles.com/ugd/353d00_d65e6a73013845f6b85d62ac6d262648.pdf
    • https://static.usrfiles.com/ugd/5b5da7_bed987c71da04f55a43b123f4a68ef4c.pdf
    • https://static.usrfiles.com/ugd/b8c837_a9cc06c6fb374e959498cb5485af8591.pdf
    • https://static.usrfiles.com/ugd/06497e_ea0ee4d5e859434da2e3c3f0c863e462.pdf
    • https://static.usrfiles.com/ugd/b8c837_cdfb252efeb347adaa10c6d1a2be24cf.pdf
    • https://static.usrfiles.com/ugd/b8c837_92a6cbb52b6147bfa79d947dc61c8ac9.pdf
    • https://static.usrfiles.com/ugd/1f2646_a6517c3729694c8ca39490fd2ae663ec.pdf
    • https://static.usrfiles.com/ugd/21e6f2_54cc61edc3a74e36b3e0b725bd49b879.pdf
    • https://static.usrfiles.com/ugd/ddb60a_f3b41d6854734770b552a9340244055c.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ca6408e5f9d43868a6ad8bf9fe80e52.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_off00004ab2.bin
8ee3c6373679057e870d2d88f9523501ca72cb375f3daec13edef2ad66030848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB2 5252 bytes
font_01_sfnt_off00005c74.bin
f3919663e92554a81301cf5d39f4930f22e6331deda229a99975bd856c407d86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C74 10256 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.