Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed028f3473083ad5…

MALICIOUS

PDF

47.0 KB Created: 2020-09-02 05:55:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 581274034e22edc5580cdc5ecac2dab3 SHA-1: 21bcdbebd46b827a8586412a52dfe6a88f438cb4 SHA-256: ed028f3473083ad5a14b36d849bf43358a1c9d3b63bf0439605906fd047c6538
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to lure users to a malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains references to the redirector URL and numerous other PDF links hosted on Shopify and static.usrfiles.com. This indicates a social engineering attempt to drive traffic to malicious infrastructure.

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.com/wix?keyword=clack+corporation+water+softener+manual
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.pdf
    • https://cdn.shopify.com/s/files/1/0432/7525/5968/files/86350875814.pdf
    • https://cdn.shopify.com/s/files/1/0464/5607/8504/files/vuwiwizupezamaxanevim.pdf
    • https://cdn.shopify.com/s/files/1/0431/6368/0929/files/ribidawinemevabolejefu.pdf
    • https://cdn.shopify.com/s/files/1/0447/9696/9121/files/adjusted_trial_balance_example_problem.pdf
    • https://static.usrfiles.com/ugd/b8c837_8e04610e10ff46a4b195ffd7d0581162.pdf
    • https://static.usrfiles.com/ugd/b8c837_05f0478cb90445b1bd23fb2084d983f9.pdf
    • https://static.usrfiles.com/ugd/9b2d9b_12f969b27b7143be8f93dddfe86d4b38.pdf
    • https://static.usrfiles.com/ugd/370ea2_86414878c18a44e285de5a0b85b0e5f0.pdf
    • https://static.usrfiles.com/ugd/9b5f63_9b2006d4186649558caaf71349981f89.pdf
    • https://static.usrfiles.com/ugd/4d935e_6e4b72f724d14630a566896172192420.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_d68153ef9ee14aaa91cc453f6a18bded.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069ab.bin
7587a080d14b774e65b8dd417af5857cd30edd96d948cf43c404aa26584d1f68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69AB 5220 bytes
font_01_sfnt_off00007b6d.bin
77c77735874d649bbc8bc8b6ddfb3a0f09ad17f40c58fbfdefbdf6d6a1f9b92a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6D 10544 bytes
font_02_sfnt_off00009f65.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F65 4324 bytes

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