Office (OLE) / .DOCX malware analysis — malicious · 44b689851fcb9adc

MALICIOUS

Office (OLE) / .DOCX

182.5 KB Created: 2020-10-22 07:03:00 Authoring application: Microsoft Office Word

MD5: 833f7cfe611d89cd4636f8961a67b57a SHA-1: d73c68f7f6e3a7cc7da16aab639fbd5571fb500e SHA-256: 44b689851fcb9adcee67652217440f895e2fe8c0bc74820c5634e04640dec29f

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 ClamAV detection 'Doc.Downloader.Logan-9781905-0' strongly suggests this is a downloader. The presence of CreateObject calls further indicates the execution of arbitrary code. The document body appears to be heavily obfuscated, preventing a clear understanding of its user-facing lure.

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` `9eefe8f6ffcba14d0b71c6151e5387d8f5be4d801ca642a4cdf376fd6353abf9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19020 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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