Office (OLE) / .DOC malware analysis — malicious · 7e7bd61af07906f3

MALICIOUS

Office (OLE) / .DOC

226.0 KB Created: 2020-10-28 14:52:00 Authoring application: Microsoft Office Word

MD5: 82862c1c616d35327924680259708e88 SHA-1: 0ce1b83e72562689ba1ff97a570d2e46e58f87ee SHA-256: 7e7bd61af07906f31a4efa5442f7cfda98c0047ef70e15f64e37c5d4882917b2

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a malicious OLE document containing a Document_Open VBA macro. This macro utilizes CreateObject and p-code auto-execution, indicating it's designed to run code automatically when the document is opened. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests the macro's purpose is to download and execute a second-stage payload. No specific family could be identified, but the delivery mechanism is clear.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
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` `2489ceb2a135709049b50a74cc235f617a5828ed2eb5bda45609a82e605df7ab`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18831 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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