Valyria — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 80e62ed960bf36cb…

MALICIOUS

Office (OLE) / .DOCX

37.5 KB Created: 2021-07-06 04:33:00 Authoring application: Microsoft Office Word
MD5: 4d8b47112db825735c6b6118ba40a74f SHA-1: 68506127159e0992e6bf4fdbb09096dc13b7c81a SHA-256: 80e62ed960bf36cb83936a6a3f3826327ece87a38efda3f62d5a90504f6ad415
202 Risk Score

Malware Insights

Valyria · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell T1140 Deobfuscate/Decode Files or Information

The sample was detected as 'Doc.Downloader.Valyria-10033997-0' by ClamAV, indicating it belongs to the Valyria family. The VBA macros contain CreateObject and CallByName functions, which are commonly used to execute malicious code. The script attempts to send data to 'https://bigben-soft-down.com/ecm/ibm/1628605512/feedback' and process the response, suggesting it's designed to harvest user input or download further malicious content. The Document_Close subroutine also triggers a message box and shows a 'frmFeedback' form, reinforcing the phishing or data collection pretext.

Heuristics 6

  • ClamAV: Doc.Downloader.Valyria-10033997-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Valyria-10033997-0
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • CallByName call high OLE_VBA_CALLBYNAME
    CallByName call
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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://bigben-soft-down.com/ecm/ibm/1628605512/feedback
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
18e58ca9644ad789397b9183a606ed6c65314d90f1948337aade13175b902f8a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2880 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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