Office (OLE) / .DOC malware analysis — malicious · a3e8fd2746d4c7ca

MALICIOUS

Office (OLE) / .DOC

200.6 KB Created: 2020-09-21 06:43:00 Authoring application: Microsoft Office Word

MD5: 6c0e44f6201d420d1668b2fdf92ff4cb SHA-1: 87058e4a6360238bf1046966838486336cea0183 SHA-256: a3e8fd2746d4c7ca269e7a02e2c0ec3bfc37a8bdf7e3eb7131cf1dd720ea66f3

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious DOC file containing VBA macros. The 'Document_Open' macro is configured to execute automatically upon opening the document. Heuristics indicate the use of 'CreateObject' and 'GetObject', common for downloading and executing payloads. ClamAV detection confirms its malicious nature as a downloader. No specific family could be identified, but the behavior is consistent with a macro-based downloader.

Heuristics 8

ClamAV: Doc.Downloader.Generic-9764468-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9764468-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `7169cbbf5de322d778ca9a77dc58bcf8bb22a6f6d4bfec64dbfa06bc63509b99`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19229 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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