Office (OLE) malware analysis — malicious · cfc21584cf62b4b0

MALICIOUS

Office (OLE)

27.5 KB Created: 2001-09-30 06:17:00 Authoring application: Microsoft Word 8.0

MD5: 0350ca3151fd348c1642718110980a6f SHA-1: b77af2f0708d75d697d42260190c9a2d93ba972d SHA-256: cfc21584cf62b4b08ab348a8527117d571a4de0fe2a4237e25b4deabfd6a00a6

180 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is an OLE document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The document body presents seemingly innocuous elevator usage instructions, likely a lure to trick the user into enabling macros. The presence of a Document_Open macro suggests the intent is to execute malicious code upon opening the document. No specific family could be identified, and no further IOCs were extracted.

Heuristics 4

ClamAV: Doc.Trojan.NSI-2 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.NSI-2
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` `ab461d264695a13f4b07b4a6c797766eb5e1c4ca5690498d45c9a8ed476a3f2a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4687 bytes
Detection ClamAV: Doc.Trojan.NSI-2 Obfuscation or payload: unlikely

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