Office (OLE) malware analysis — malicious · 901eda5b1e7a0129

MALICIOUS

Office (OLE)

47.5 KB Created: 2008-04-28 16:17:00 Authoring application: Microsoft Word 11.3.5

MD5: fd6f5e585859d03fca12395357228806 SHA-1: ce644f89f1777f8736c50f7907d4ef0032239ab7 SHA-256: 901eda5b1e7a0129b360f2da7100b9f924d209e4195770cee4cb39441e6faad0

180 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The ClamAV detection 'Doc.Trojan.Thus-8' strongly suggests malicious intent. The document body, disguised as a school event announcement, is a social engineering lure to trick users into enabling 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` `777244ab52b0c669b3f7b82fc45ac86e2d3a72c6ddf017e329af43d2ed3d0f89`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2406 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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