Office (OLE) / .DOC malware analysis — malicious · b2339ca7384882e7

MALICIOUS

Office (OLE) / .DOC

218.4 KB Created: 2020-09-21 23:04:00 Authoring application: Microsoft Office Word

MD5: d2bc0d6153ec3d700a2d7cfaa226098c SHA-1: 0cc3ae9eefc47610eb8e53078c6736059619b2d3 SHA-256: b2339ca7384882e7890be54423368cc05ab075217d9bfb65f52b8b38bc673e4b

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 presence of a 'Document_Open' macro, along with 'CreateObject' and 'GetObject' calls, strongly indicates that the macros are designed to execute automatically upon opening the document. The ClamAV detection and heuristic firings confirm its malicious nature. The primary function appears to be the execution of code, likely to download and run a second-stage payload, as suggested by the 'auto-exec with execution terms' heuristic.

Heuristics 8

ClamAV: Doc.Malware.Sagent-9764704-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Sagent-9764704-0
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` `50bfbdd07ba14490c9717edeea07b93592fbd1031d8de4b70bb45954a661031c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19154 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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