Office (OLE) / .DOC malware analysis — malicious · 8abc06b27ac1c87c

MALICIOUS

Office (OLE) / .DOC

89.1 KB Created: 2020-12-29 06:48:00 Authoring application: Microsoft Office Word

MD5: e62f39f70a35cac266a55fbf40071d75 SHA-1: b3c2c8017008c1d7d2b97b2f7f6b8fb177a5d3fc SHA-256: 8abc06b27ac1c87cbeebd3d7a12f19b235f91b1cd73825fb6111324a71b0debd

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1059.001 PowerShell T1105 Ingress Tool Transfer

The sample contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating an attempt to execute code automatically. The presence of obfuscated VBA code suggests the macro's purpose is to download and execute a second-stage payload. While the specific family is not identifiable, the technique of using a Document_Open macro to initiate a download is common among various malware droppers.

Heuristics 6

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.
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 http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `ee8ec4fa15ad6eb2ac2bf070761ccf080e3c94ec90e0c1c54b34fa827ebaa511`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8326 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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