Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcbe4e86c8f27b1…

MALICIOUS

PDF

32.6 KB Created: 2020-11-06 04:04:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c8afc76e595a8acc60e9cab49b1a97f SHA-1: 81656f241fab5a92a17360aa6bae5f019b501a17 SHA-256: 3bcbe4e86c8f27b15d26b3a6b4c00d64db0a4c05643328c91558839da3a3cb56
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic firing indicating a malicious redirector link. The embedded URL, https://gettraff.ru/aws?keyword=orvis+safe+passage+guide+sling+pack, is identified as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting its purpose is to lure the user to a malicious site. No scripts were extracted, but the presence of a malicious URL is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 2

  • 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.
  • 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://gettraff.ru/aws?keyword=orvis+safe+passage+guide+sling+pack
    • https://cdn-cms.f-static.net/uploads/4375204/normal_5f904f1b6215c.pdf
    • https://cdn-cms.f-static.net/uploads/4374537/normal_5f8e70e11053b.pdf
    • https://cdn-cms.f-static.net/uploads/4403819/normal_5f99e4fc4b049.pdf
    • https://cdn-cms.f-static.net/uploads/4375517/normal_5f8c888a38afb.pdf
    • https://cdn-cms.f-static.net/uploads/4365601/normal_5f941f7fe21bc.pdf
    • https://cdn-cms.f-static.net/uploads/4381735/normal_5f8b66ecf3a68.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bubodeliza/26627578361.pdf
    • https://uploads.strikinglycdn.com/files/dd877bcd-cbdc-44c2-b66b-b02c61437386/14265818994.pdf
    • https://s3.amazonaws.com/zerejibixupav/vasorisojani.pdf
    • https://s3.amazonaws.com/perurulexi/mazanafuwuxulo.pdf
    • https://uploads.strikinglycdn.com/files/11bb25ff-ed4d-4fc0-8340-190b4c986b36/noguduwazo.pdf
    • https://uploads.strikinglycdn.com/files/9a7ac1cb-f1dc-4042-8694-5f85f2a30398/1236305414.pdf
    • https://uploads.strikinglycdn.com/files/76e37d9b-66b9-4667-88b2-d2f54346f731/52254707580.pdf
    • https://s3.amazonaws.com/susopuzupure/ancient_history_in_hindi_for_upsc.pdf
    • https://uploads.strikinglycdn.com/files/26a81ea8-d119-4d4f-9721-ca976da74c94/3203623210.pdf
    • https://s3.amazonaws.com/penefelomiju/wapumugabesago.pdf
    • https://uploads.strikinglycdn.com/files/8067fbc8-2fd4-4355-a42b-dc76c37293bb/99547465116.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006315.bin
06ce994158d0f8e88d7c44444a43db40d6f743e1e033e3e4ca6a02923fcbc46d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6315 5472 bytes

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