Office (OLE) malware analysis — malicious · 0827f8cdf0c60738

MALICIOUS

Office (OLE)

84.5 KB Created: 2009-02-26 17:32:00 Authoring application: Microsoft Word 8.0

MD5: 0f3b851486a067bbc3ac196526555f70 SHA-1: 060f55262d8d7570e00d63186ab442d62fee9328 SHA-256: 0827f8cdf0c6073833e4be56be249d91c2b6318bc1e37031df0d2d4cfd1c93cf

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The file contains VBA macros, including an AutoOpen macro, which is a strong indicator of malicious intent. The macro code attempts to create a temporary file named 'c:\Iron.tmp' and appears to be part of a downloader or dropper mechanism. The document body discusses environmental issues in Kazakhstan, which may serve as a lure to encourage users to enable macros.

Heuristics 4

ClamAV: Doc.Trojan.Nori-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Nori-1
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
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` `d01b0d661d39d4536ac3c3a3432939d20c36fc79cf27f03559e1893da5bd22ab`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	7967 bytes
Detection ClamAV: Doc.Trojan.Nori-1 Obfuscation or payload: unlikely

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