Malicious PDF — malware analysis report

Static analysis result for SHA-256 56f34e73967ca608…

MALICIOUS

PDF

39.2 KB Created: 2020-09-04 08:50:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bfd838b6137e9835b57753f0fae0ad5 SHA-1: 94c05aa678eca2c6db960d032eff997f3ec4153f SHA-256: 56f34e73967ca608a699ca3c0edcea3b4be7c47901f3b8c780087d42ab1aa025
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. One of the embedded URLs, 'https://ttraff.me/wix?keyword=beastie+bay+layout+guide', is identified as a known malicious redirector. The document body, though heavily obfuscated, contains references to the same URL and other Shopify links, reinforcing the link farm attack pattern. No scripts were extracted, limiting further analysis of the payload.

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=beastie+bay+layout+guide
    • https://cdn.shopify.com/s/files/1/0432/9462/1862/files/trial_of_the_sea_lion_vanilla.pdf
    • https://cdn.shopify.com/s/files/1/0461/0673/8851/files/54252587299.pdf
    • https://cdn.shopify.com/s/files/1/0431/7210/2308/files/90988515791.pdf
    • https://cdn.shopify.com/s/files/1/0435/7731/1395/files/tech_tree_civ_6.pdf
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/nodowakiwinobidebajeg.pdf
    • https://static.usrfiles.com/ugd/40b9e6_eecadb64636e4dd9b678032b8ffb77d0.pdf
    • https://static.usrfiles.com/ugd/93971e_3e9a74ecd7734145bb1f84129de0d2ce.pdf
    • https://static.usrfiles.com/ugd/07625c_3f2660cabb0f41e995517cfc702a1038.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15843942414.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/13739408933.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/the_human_brain_vanderah.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_off00005cb7.bin
bf4c1ad2adfeb66fb8777e04f905dbd11bb027befabdae21a4dc069e7a6cb5af
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB7 5188 bytes
font_01_sfnt_off00006e71.bin
5b77bb314389912229ce39c73c2614e04ec65cfd58a80478f41255d95e5d95b9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E71 9960 bytes