Office (OLE) / .XLS malware analysis — malicious · 7b9347900e27559b

MALICIOUS

Office (OLE) / .XLS

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

MD5: 16ff3a934cc31ee7e4407caed8b5160b SHA-1: 89bca4aae18925b44b7a6424567d15f8a0139c21 SHA-256: 7b9347900e27559ba3fcfe186a57ee8d28f8c949442a5d12a4bf9f7ed459114d

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is an Excel spreadsheet containing VBA macros, including an Auto_Open subroutine, which is a common technique for executing malicious code upon opening. The macros reference the URLDownloadToFile API, indicating an intent to download and execute a second-stage payload from one of the embedded URLs. The ClamAV detection name 'Doc.Downloader.Docusign112100-9908075-0' further supports this downloader functionality.

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://190.14.37.178/
- http://185.183.96.67/
- http://185.250.148.213/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `2ad1c1f87f2f014cbe63ca2d48e08b26c2e70089c21e82116f929d26c50b2d3f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3654 bytes

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