Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba44a48c3c179663…

MALICIOUS

PDF

40.6 KB Created: 2020-09-07 13:15:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d7aee1e710b74d974cbfe2dd1df0b9bc SHA-1: fdb1e5a18fab42574d88b3eaec31ce7cdba6ccb6 SHA-256: ba44a48c3c179663a051162d3c2efc36a76ffbde3e922418139535a3948b2ad8
128 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple PDF files hosted on static.usrfiles.com, and a primary redirector link to ttraff.link. The document body, though heavily obfuscated, contains text related to 'Adobe illustrator template magazine cover' and a call-to-action phrase, suggesting a lure to download or view content. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or malware distribution attempt.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.link/wix?keyword=adobe+illustrator+template+magazine+cover
    • https://static.usrfiles.com/ugd/db80c5_3baa4f8a75934fca80a8bd534b02dec0.pdf
    • https://static.usrfiles.com/ugd/8e66a5_d82b06223cf14526a28d2a49177f8f58.pdf
    • https://static.usrfiles.com/ugd/cc03df_6254a9e0407642a3aa8181d937920a6d.pdf
    • https://static.usrfiles.com/ugd/5befcb_f93664073994491a885617b2899fe849.pdf
    • https://static.usrfiles.com/ugd/ae059d_fab90669873f4f77b43ec6c64bf88641.pdf
    • https://static.usrfiles.com/ugd/79cb75_426cdfc64bd24a9ebb9c9d928b9f1a56.pdf
    • https://static.usrfiles.com/ugd/ecd213_8b88328b607347ada6bcd2c76b7f3cc2.pdf
    • https://static.usrfiles.com/ugd/b8c837_10a19c943d4f41f4bb6f82c12504653c.pdf
    • https://static.usrfiles.com/ugd/c3548c_634c2cf35db04f2d9f288af863f5f741.pdf
    • https://static.usrfiles.com/ugd/7c1f05_c4110b0111ca4d98a9a310812369c5c4.pdf
    • https://static.usrfiles.com/ugd/e4ff69_621881662e904e87bba3ba548c7ac4ae.pdf
    • https://static.usrfiles.com/ugd/5cf23b_8de03b92c07447a7830fd0929040dfac.pdf
    • https://static.usrfiles.com/ugd/b1277d_76254c89fb55407da89e4802db7653ce.pdf
    • https://cdn.shopify.com/s/files/1/0438/0796/5341/files/angina_de_vincent_y_ludwig.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/the_lottery_by_shirley_jackson.pdf
    • https://cdn.shopify.com/s/files/1/0430/8421/8521/files/vutabel.pdf
    • https://cdn.shopify.com/s/files/1/0431/6689/2186/files/personal_statement_format_for_university.pdf
    • https://cdn.shopify.com/s/files/1/0435/7059/3955/files/13648768076.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_off00005eab.bin
f345e05b4a55ae8a495e5749ec472493c03e7224215d011b48d680a1f1e58cd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAB 5632 bytes
font_01_sfnt_off000071c8.bin
eb8b5e293b0aec688b87ebbd7f70a0328422a43184f743508ad080d8ec13d3fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x71C8 10916 bytes