Office (OLE) / .DOC malware analysis — malicious · 1d37fd56eaaee226

MALICIOUS

Office (OLE) / .DOC

50.0 KB Created: 2006-05-17 02:56:00 Authoring application: Microsoft Word 11.5.6

MD5: e2f8439110792b6f84183c1185b69fae SHA-1: 64e265f29ddd39880220c15ad3e3a4a04715816e SHA-256: 1d37fd56eaaee2261b648908af9ef8924cf241838cc14e6c5f975a58ee0a9668

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell

The sample is a Microsoft Word document containing VBA macros. Heuristics indicate the presence of a Shell() call within the VBA code, and static triage flags this as suspicious behavior. ClamAV detections further confirm its malicious nature. The extracted 'macros.bas' file likely contains the malicious VBA code responsible for executing shell commands, potentially to download and execute a second-stage payload.

Heuristics 5

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Trojan.Marker-31 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Marker-31
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `01e98178fec80d1b82a209fcb0b85f0769f1da0c5aa518d2e1219cfcdc89b0fd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	5298 bytes
Detection ClamAV: Doc.Trojan.Marker-3 Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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