Office (OLE) malware analysis — malicious · d7cec2d4328886d8

MALICIOUS

Office (OLE)

43.5 KB Created: 2009-05-25 12:55:00 Authoring application: Microsoft Word 11.2

MD5: 4d576989492b8541cf20fb295a4b6897 SHA-1: 1ee1c2d9002b74daad965628105746e87ac8921d SHA-256: d7cec2d4328886d8f88952e24f88b09c319b0e76af96e4a4f7fa205c31f0983b

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is an OLE document containing VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening. ClamAV detections further confirm its malicious nature. Although no specific payload or download URL was extracted, the presence of the Document_Open macro strongly suggests an intent to execute arbitrary code, likely for downloading and running a secondary stage. The document body content appears to be a job description, which is likely a lure to trick the user into enabling macros.

Heuristics 4

ClamAV: Doc.Trojan.Marker-2 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Marker-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` `fbee58c94b9d077218cad7a9ad75b4ec96f9aab122615a16e4163cbf0baae6ff`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4262 bytes
Detection ClamAV: Doc.Trojan.Marker-2 Obfuscation or payload: unlikely

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