Office (OLE) / .DOC malware analysis — malicious · a38321c667c6b33a

MALICIOUS

Office (OLE) / .DOC

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

MD5: 2374bfbb010b0bc3b096c040c141242e SHA-1: ca73cfdc81b147af287d2e681d52e0868c6dde8d SHA-256: a38321c667c6b33ab54aa7a5af2f21aab5771ee420032b140ada803af1dc368d

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initiating malicious activity upon document opening. The critical ClamAV detection of 'Doc.Downloader.Logan-9781905-0' strongly indicates its role as a downloader. The obfuscated document body content does not provide direct clues to the lure, but the presence of VBA macros and the downloader signature point to an attack pattern focused on delivering a secondary payload.

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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