Office (OLE) malware analysis — malicious · 618168437703f7ad

MALICIOUS

Office (OLE)

46.5 KB Created: 2008-08-29 12:22:00 Authoring application: Microsoft Word 11.3.5

MD5: 947c98c9d2fcb4039d4e6514b5815f25 SHA-1: 33742ba6e75c86bb76de14818f6a7133a1f34b48 SHA-256: 618168437703f7ad4c15b1123525a1ba3d0ff97fe02f9a4a5632d80a9e574859

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is a malicious Office document containing VBA macros, specifically a Document_Open macro designed to evade antivirus. The macro attempts to disable virus protection and modify the Normal template, indicating a malicious intent to persist or spread. The ClamAV detection 'Doc.Trojan.Thus-10' further confirms its malicious nature.

Heuristics 4

ClamAV: Doc.Trojan.Thus-10 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Thus-10
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` `92d0fa20925437be855228570a2aee5857b549baa6f864914dbb8b0b4fb228f1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2270 bytes
Detection ClamAV: Doc.Trojan.Thus-10 Obfuscation or payload: unlikely

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