Office (OLE) malware analysis — malicious · a96d20a2866c214d

MALICIOUS

Office (OLE)

41.0 KB Created: 2009-10-28 20:04:00 Authoring application: Microsoft Word 11.5.3

MD5: 92ed269487cf094f5f93f4e7d1037ded SHA-1: 9ae1ca66b262da84225921dc06e66efb9abfedae SHA-256: a96d20a2866c214d8c0f1ca32ead3740c8eafb1c43f6157f1e6c7a2473d93480

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature 'Doc.Trojan.Thus-8'. Static analysis detected VBA macros, specifically a 'Document_Open' macro, indicating that the document is designed to execute code upon opening. The document body presents as a science quiz, likely a lure to encourage users to enable macros. The primary attack vector is likely macro execution to download and run a secondary payload.

Heuristics 4

ClamAV: Doc.Trojan.Thus-8 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Thus-8
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.
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
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` `a5c6a312d435fbe0dbbdb44a7eb4b8ca28801dadc0b47266138cf2d5f32abe40`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2364 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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