Office (OLE) / .DOC malware analysis — malicious · 4b59c4db6b4d14e2

MALICIOUS

Office (OLE) / .DOC

184.5 KB Created: 2020-10-22 06:54:00 Authoring application: Microsoft Office Word

MD5: 87324275b9f068f4af0fd5aee8690275 SHA-1: 6383273a282485810786fb5cb02ea74cca03d8c4 SHA-256: 4b59c4db6b4d14e2dfe7730fe25ed0dc21bb251a5c1b053cdd70e28cfc195867

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious Microsoft Word document containing VBA macros. The 'Document_Open' macro is configured to auto-execute upon opening, and it utilizes 'CreateObject' to likely download and execute a second-stage payload. The ClamAV detection name 'Doc.Downloader.Logan-9781905-0' further supports its role as a downloader. The document body content is heavily obfuscated and unreadable.

Heuristics 7

ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
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` `9979b97c308d841b566985c48e8a84b999556c3e27641c5af6c36c44f3b0664e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18953 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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