Office (OLE) / .DOC malware analysis — malicious · b4983592a941248c

MALICIOUS

Office (OLE) / .DOC

176.3 KB Created: 2020-09-18 22:05:00 Authoring application: Microsoft Office Word

MD5: 7b7955ff62ccbff41988d91997d58bf8 SHA-1: 6b95f2b9b7c709116aaae0482eeb8d3474b39e83 SHA-256: b4983592a941248c5987bf8f8d31a34065e518d9ed9ad64c2439660456b8caa9

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a malicious OLE document containing a VBA macro that automatically executes upon opening. The macro utilizes CreateObject, indicating an attempt to run external code. This behavior is consistent with a downloader, aiming to fetch and execute a second-stage payload. The ClamAV detection as 'Doc.Downloader.Generic' further supports this assessment.

Heuristics 7

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.
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` `f035cd1023dade0b5d5e126cbab797fd9aeb292e781548b39fa794a9356990ee`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19197 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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