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

Static analysis result for SHA-256 72980454b0d062c4…

MALICIOUS

Office (OLE) / .DOC

177.3 KB Created: 2020-09-18 22:05:00 Authoring application: Microsoft Office Word
MD5: f93703ee4ab13bedb6c22772fafd2eaf SHA-1: 1c86385903697cd1c1dd80eb234ce11b2db73005 SHA-256: 72980454b0d062c4c2f206e8d1580898bf18a20d780242d4631b8f5444ce9658
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file is a malicious Office document containing VBA macros. The 'Document_open' macro is present and uses 'CreateObject', indicating an attempt to execute code. The ClamAV detection 'Doc.Downloader.Generic-9763712-0' strongly suggests the macro's purpose is to download a secondary payload. While the specific download URL is not directly visible due to obfuscation, the presence of macros and the downloader heuristic point to a typical phishing attachment attack.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-9763712-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9763712-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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 http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
f035cd1023dade0b5d5e126cbab797fd9aeb292e781548b39fa794a9356990ee		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19197 bytes

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