Office (OLE) malware analysis — malicious · 592ab8d01582d6c4

MALICIOUS

Office (OLE)

60.0 KB Created: 2009-10-24 11:10:00 Authoring application: Microsoft Word 11.5.3

MD5: 88ef303f1443298b389d4a172c846ea0 SHA-1: b40ef7db5e9349fa3dd90b6b187e3ef6d508908c SHA-256: 592ab8d01582d6c4302dc7fc34fd958319aea889f0cdfcbf79808cd299648a2f

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common delivery mechanism for malware. The document body is disguised as a school assignment for a travel brochure, likely to trick the user into enabling macros. The presence of the 'Doc.Trojan.Thus-8' ClamAV detection further confirms its malicious nature. The embedded URL 'http://www.ZoomAstronomy.com' is likely used to download a secondary payload.

Heuristics 5

ClamAV: Doc.Trojan.Thus-8 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Thus-8
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
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://www.ZoomAstronomy.com

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `d7af64befef853c1004cd5fc871141661b83a3ca2c52962806f34bc89012b6ff`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2404 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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