Office (OLE) / .DOC malware analysis — malicious · 842b7472a87608a9

MALICIOUS

Office (OLE) / .DOC

155.4 KB Created: 2020-09-22 12:54:00 Authoring application: Microsoft Office Word

MD5: c52dc5f0b4b2b5136d42a88ce1b83a22 SHA-1: 47158524c6f8ae1c962534fbebb4695a249e7e61 SHA-256: 842b7472a87608a9bfc60d110b18f6e1bbeb07d4933cabfd4e8af4236907b800

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a malicious OLE document containing VBA macros. The 'Document_Open' macro is present and configured to execute automatically, indicating an attempt to run malicious code upon opening. Heuristics suggest the use of CreateObject and GetObject, common for downloading and executing payloads. The presence of 'macros.bas' further confirms the macro-based nature of the attack. The exact payload or download URL is not directly extractable from the provided evidence, but the intent is clearly to execute arbitrary code.

Heuristics 8

ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `63bc7201a259a9f3eac24fc4f9990c61de6bed3eb66abffd8ef4af2ac67d9b62`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15901 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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