Malicious Office (OOXML) / .DOC — malware analysis report

Static analysis result for SHA-256 e7bdd49216759f1b…

MALICIOUS

Office (OOXML) / .DOC

417.0 KB Created: 2022-02-07 10:12:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: 807094725432894272afc3c9216b06a3 SHA-1: 287e24f0d9bf9fd8cdab3b337c664c3c34ce3dc0 SHA-256: e7bdd49216759f1b0548a11d6fecb803de984e40d9b35cecbca57d0b97cdd16c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The script uses WinAPI calls to download a payload from the hardcoded URLs: 'https://voyage-prive.thelearningvoyage.com/static/files/6e0b7833-d009-4d39-bc9d-b3e6354dbfd7-64' and 'https://voyage-prive.thelearningvoyage.com/static/files/6e0b7833-d009-4d39-bc9d-b3e6354dbfd7-32'. The script also attempts to communicate with 'elephant-info.azureedge.net', likely for command and control or logging. This indicates a downloader or droppper functionality.

Heuristics 6

  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject 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 project inside OOXML medium OOXML_VBA
    Document contains vbaProject.bin — VBA macros present
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • 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://voyage-prive.thelearningvoyage.com/static/files/6e0b7833-d009-4d39-bc9d-b3e6354dbfd7-64
    • https://voyage-prive.thelearningvoyage.com/static/files/6e0b7833-d009-4d39-bc9d-b3e6354dbfd7-32
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.microsoft.com/office/drawing/2015/10/21/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/drawing/2016/ink
    • http://schemas.microsoft.com/office/drawing/2017/model3d
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2018/wordml/cex
    • http://schemas.microsoft.com/office/word/2016/wordml/cid
    • http://schemas.microsoft.com/office/word/2018/wordml
    • http://schemas.microsoft.com/office/word/2020/wordml/sdtdatahash
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
0195a532e0d22b3194bbbd862044926404663aaf63579d3e586507ce0ae6bd85		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 10030 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.
vbaProject_00.bin
9272341b608d32bb03e6740202024852fd4d72d813a2604a1a0ade6adb6e2adb		 vba-project OOXML VBA project: word/vbaProject.bin 63488 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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