Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d614b864b0ed380…

MALICIOUS

PDF

43.1 KB Created: 2020-08-29 18:58:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 072c8fced465651f0704e1b50ab171c7 SHA-1: b774ab7cba7bc97d38689e06cb88b1248790e63f SHA-256: 1d614b864b0ed380355b4462668c213d57d2e1ecadca3e1e37cffbbc982faf49
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one prominently pointing to a known malicious redirector. The document body, though heavily obfuscated, includes the URL that triggered the malicious redirector heuristic. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=2006+volkswagen+passat+owners+manual+pdf
    • https://cdn.shopify.com/s/files/1/0438/2621/7120/files/movie_for_mobile_in_hd_quality.pdf
    • https://cdn.shopify.com/s/files/1/0437/3161/5909/files/35727816955.pdf
    • https://cdn.shopify.com/s/files/1/0429/3948/2275/files/google_digital_skills_exam_answers.pdf
    • https://static.usrfiles.com/ugd/b8c837_40b0e2f330ed48b687c04fd0fa65e47c.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f6e0a5b89b14037a7c44b6d91043543.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce64934b18b9454eb1cd4b0ec1c38508.pdf
    • https://static.usrfiles.com/ugd/d5cf39_e3994363b269412181d3e0e7d591984e.pdf
    • https://static.usrfiles.com/ugd/b8c837_aebdf05098b34cd4bb04189667c5a6b8.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ed08b8fe7ff4931a5c9461aad3c3dc3.pdf
    • https://static.usrfiles.com/ugd/b8c837_64c7c4ebf16c4487970e57a9a99e91ba.pdf
    • https://static.usrfiles.com/ugd/b8c837_c3cc08bbea914980af47646a1456721e.pdf
    • https://static.usrfiles.com/ugd/ac72e0_f15497a9c2cd4e3198f85d326ae0964c.pdf
    • https://static.usrfiles.com/ugd/b8c837_c73b640a1b314033a10e4d1afbca21dc.pdf
    • https://static.usrfiles.com/ugd/7f46b5_3569dd4ba920430eb9134f6b35f98303.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_off00006741.bin
bf8721d7aa3ab5a5ccf32c5cf2bec44de99c41681988e5d733b1a953ac34dc4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6741 5912 bytes
font_01_sfnt_off00007b58.bin
fc4f5ba94de9c4002d96c5b59f2e8fc3cc352c97cdd7563e0d649f67d97582ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B58 10684 bytes

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