Office (OLE) / .DOCX malware analysis — malicious · 9530d202be6692b1

MALICIOUS

Office (OLE) / .DOCX

152.7 KB Created: 2020-09-24 05:47:00 Authoring application: Microsoft Office Word

MD5: edb75a3c81b7b730bafa51164447f67d SHA-1: d394994640ac3f37f7dbe1150c4cb91d97c85660 SHA-256: 9530d202be6692b15721f936a6cd20a7319a5dc92e97e12b532ceb3d74641753

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a VBA macro that is automatically executed upon opening the document, as indicated by the Document_Open heuristic. This macro utilizes CreateObject to likely execute a PowerShell command, as suggested by the embedded document body content which appears to be obfuscated PowerShell commands. The ClamAV detection further confirms its malicious nature. The primary IOC is the VBA macro file itself.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
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` `b0798fb7450882311ba60b57e039433588cb794c6cc8a10f75d1de73c5c7973a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19490 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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