Malicious PDF — malware analysis report

Static analysis result for SHA-256 908f6f9ce74e2559…

MALICIOUS

PDF

221.2 KB Created: 2018-09-05 12:09:14 +00:00 Authoring application: Microsoft Word
MD5: f013c2ff4c0377eda0f5a9f3c7f7f821 SHA-1: b1b1ac3b70c754d27ea227b6193eeee667e0439e SHA-256: 908f6f9ce74e2559ea8788aff7fabd8453710bddcf439fa8d73798469ad8aa63
84 Risk Score

Malware Insights

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

The file is a PDF document that uses a cloud document lure to impersonate a file-sharing service. It contains a malicious external URI pointing to 'https://alquimes.ga/%24%23%5E%40%25%40%5E%40', which is likely intended to lead the user to a phishing site or a malware download. The ClamAV detection further supports its malicious nature.

Heuristics 4

  • ClamAV: Pdf.Phishing.CWS497388d5-9899792-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.CWS497388d5-9899792-0
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://alquimes.ga/%24%23%5E%40%25%40%5E%40
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0002109f.bin
9751df17f4c5b247844129d2ddb39a035fc08dda310fc2b6cd295ca5784cc3bd		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2109F 304600 bytes

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