Office (OLE) / .XLS malware analysis — malicious · 9828f899790d1503

MALICIOUS

Office (OLE) / .XLS

129.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel

MD5: 1dc3a1c0972a9e32d88e85d1cf8f2c65 SHA-1: 808311a07522956f55bf842749083e199b0f04c6 SHA-256: 9828f899790d150360e0a3f78f3eb3b758417644bc16896aeb411e2af9e8ea4b

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file contains VBA macros, including Auto_Open and Auto_Close, which are commonly used to execute malicious code upon opening or closing a document. The critical SC_STR_URLDOWNLOAD heuristic indicates the macro attempts to download content from a URL. The embedded URLs are likely used to fetch and execute a secondary payload. The ClamAV detection as 'Doc.Downloader.Docusign112100-9908075-0' further supports its role as a downloader.

Heuristics 6

Reference to URLDownloadToFile API critical SC_STR_URLDOWNLOAD

Reference to URLDownloadToFile API
ClamAV: Doc.Downloader.Docusign112100-9908075-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Docusign112100-9908075-0
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
Auto_Close macro high OLE_VBA_AUTOCLOSE

Auto_Close 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://190.14.37.165/
- http://5.196.247.11/
- http://188.119.113.3/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `fde66e20711a7f15978b94a5a866f07b9d20ea1d8f560b84fb649e896abaaf38`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4585 bytes

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