Office (OLE) / .DOCX malware analysis — malicious · d2a69c58abe4e6aa

MALICIOUS

Office (OLE) / .DOCX

180.5 KB Created: 2020-09-18 08:59:00 Authoring application: Microsoft Office Word

MD5: c699ec0d9c5339892e11e552dd8b7d18 SHA-1: 1b309c74d89cf83663d3554ccddee5b0ad841931 SHA-256: d2a69c58abe4e6aa189d2eb2df014d31d32208d552627e3802565ae231cbc587

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a malicious Office document containing a VBA macro that automatically executes upon opening. This macro is likely designed to download and execute a second-stage payload, as indicated by the 'Doc.Downloader.Generic' ClamAV detection and the presence of the 'macros.bas' artifact. The document body content is heavily corrupted and unreadable, providing no further context on the lure.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763419-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763419-0
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` `2cacffa870bc163e0d80063dbad890b2628b581c624e40730ba57a6c44f2b3d2`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20834 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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