Malicious PDF — malware analysis report

Static analysis result for SHA-256 9009f9b763a764d8…

MALICIOUS

PDF

41.6 KB Created: 2020-08-31 01:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94b5783ca909f7e322a2f5069404f5e9 SHA-1: 631dd8945f40dd5ca244534031445e970d92d90e SHA-256: 9009f9b763a764d86f8d3d03c8dbd001c40d33035bac4299fc53dc3fbc55e2b0
160 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body and heuristics indicate a lure to download a password-protected archive, a technique often used to bypass initial security scans. The primary malicious URL is ttraff.com, which redirects based on keywords.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=think+central+go+math+grade+4+practi
    • https://cdn.shopify.com/s/files/1/0439/6895/4526/files/error_invalid_active_developer_path.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0087/files/muwapanusawidap.pdf
    • https://cdn.shopify.com/s/files/1/0436/8901/7497/files/apple_airport_a1392_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/wadakugexudole.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/zukudilolugizax.pdf
    • https://cdn.shopify.com/s/files/1/0440/2289/0646/files/5725825051.pdf
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/auntie_edna_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/50863108075.pdf
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/80167529492.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2822/files/deductive_and_inductive_research.pdf
    • https://static.usrfiles.com/ugd/4826f5_d89474d6a66a4ed4b0aba8560a98e5a9.pdf
    • https://static.usrfiles.com/ugd/4c1554_56a34fc875a94e44aeb20906c69c3c95.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fd0a6254a624316afc839a0cfb07ffb.pdf
    • https://static.usrfiles.com/ugd/b88e3d_405855b74b674c658c12944e0a3a9651.pdf
    • https://static.usrfiles.com/ugd/6116da_85676dcf142e4a149f55fc98ab0c219e.pdf
    • https://static.usrfiles.com/ugd/cf14a4_02169202289c49478e7c0cd42e42b0a2.pdf
    • https://static.usrfiles.com/ugd/f967ac_9812b283f38b4856a3d971e7221da33d.pdf
    • https://static.usrfiles.com/ugd/b5472a_6ca75141d951423d91d38daf4b1b0504.pdf
    • https://static.usrfiles.com/ugd/7f16bd_bafbd2b3a46f44ea902ece5a3b6d0644.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_off0000628f.bin
8fc37128a8fef4479aef6a24c1ba6d0bfa39185f1d34d0fc40deb158faab02ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x628F 5408 bytes
font_01_sfnt_off000074b7.bin
a5474d9a00fc20b24c5a7c28d8887577f270c7e234079c8bfa672dd40357156f
pdf-font-stream PDF embedded font (sfnt) at offset 0x74B7 10596 bytes