Office (OLE) / .DOC malware analysis — malicious · bb2fd7f89d6de42a

MALICIOUS

Office (OLE) / .DOC

163.6 KB Created: 2020-09-17 22:39:00 Authoring application: Microsoft Office Word

MD5: a7dba3115b5d621728ef122d032f611a SHA-1: 4ed2a569b5d329dc9a63c7e44021cfbd97b6f08b SHA-256: bb2fd7f89d6de42a49049dbd2535a119323203510e6958fb12b04109c2f70433

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is a Microsoft Office document containing a malicious VBA macro. The macro is configured to auto-execute upon opening, indicated by the 'Document_Open' and 'PCODE_AUTOEXEC_EXEC' heuristics. The 'CreateObject' heuristic suggests the macro is likely attempting to download and execute a second-stage payload. ClamAV detection further confirms its malicious nature as a downloader. No specific IOCs were extracted beyond the presence of the macro itself.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763145-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763145-0
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.
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` `1e2a7d06314ac88dde2877d244d6ca5e91533ec592ad1318aa4aab91c451ca9e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21979 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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