Office (OLE) malware analysis — malicious · eb081d566fda93a5

MALICIOUS

Office (OLE)

42.0 KB Created: 2009-08-06 21:43:00 Authoring application: Microsoft Word 8.0

MD5: 84acbcae5d41541e5d2a0efd170a028c SHA-1: 4d2248d38c2640018300f0bc94ab438a8df26e49 SHA-256: eb081d566fda93a51b1fdd780f9cf314d92822bc4daa3b700b81638d0b290a4b

260 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is detected as malicious by ClamAV with the signature 'Doc.Trojan.Tristate-1'. Static triage indicates VBA macro obfuscation and auto-execution, suggesting the macros are designed to run automatically upon opening the document. The presence of VBA macros and CreateObject/GetObject calls points to malicious scripting activity. The document body presents a seemingly legitimate registration form, likely a social engineering lure to trick users into enabling macros.

Heuristics 6

ClamAV: Doc.Trojan.Tristate-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Tristate-1
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.
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject call
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` `dc8a1703fe090b4047c73221cce0a84a5352e174c04fcc86b2326907a78e4540`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9246 bytes
Detection ClamAV: Doc.Trojan.Tristate-1 Obfuscation or payload: likely Carved artifact contains 12 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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