Office (OLE) / .DOC malware analysis — malicious · 7ca2cf3980fcd178

MALICIOUS

Office (OLE) / .DOC

61.0 KB Created: 1998-12-30 13:56:00 Authoring application: Microsoft Word 8.0

MD5: 3534205e57974449c8c7442b1b159a11 SHA-1: ecde85acfc9846fd4bbcd63c676f712cf6e8925c SHA-256: 7ca2cf3980fcd178045f7803bae2509c5c8a1c7e88a984b30561df9b277c037e

220 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is a Microsoft Word document containing VBA macros, specifically triggering AutoOpen and Auto_Close events. ClamAV detections indicate it is a known trojan. The presence of macros suggests an attempt to download and execute a secondary payload, a common tactic for malware delivery. No specific family could be identified from the available heuristics.

Heuristics 5

ClamAV: Doc.Trojan.Class-37 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Class-37
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.
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
Auto_Close macro high OLE_VBA_AUTOCLOSE

Auto_Close 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` `8a5dfab8d58ea4566a24c3c4869e59343137af78451215158ae6b0656e4349fe`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15176 bytes
Detection ClamAV: Doc.Trojan.Class-5 Obfuscation or payload: unlikely

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