Office (OLE) / .DOCX malware analysis — malicious · 9a25e51de2a4b428

MALICIOUS

Office (OLE) / .DOCX

178.0 KB Created: 2020-10-22 10:11:00 Authoring application: Microsoft Office Word

MD5: 82bf2e12b5311e121b81934a3a8157d0 SHA-1: 61d0d811c552813a95a5e2ff212a2475ad7fa982 SHA-256: 9a25e51de2a4b4280f7006a09e91ed7a4d3d2c9cf24fde4023b14e9d0801a52c

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file is a malicious Office document containing VBA macros, specifically a Document_Open macro that executes upon opening. The critical ClamAV detection as 'Doc.Downloader.Logan-9781905-0' indicates a downloader functionality. The presence of a Document_Open macro and CreateObject calls strongly suggests the macro is designed to download and execute a second-stage payload. The document body, though heavily obfuscated, appears to be a lure to encourage macro execution.

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` `f977b274eae3d98ca756a10910ec7f42c1a29b087c225685f92a2f289133a3d9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18827 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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