Office (OLE) / .XLS malware analysis — malicious · 299f8a2e3479a237

MALICIOUS

Office (OLE) / .XLS

1.43 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 34dd3db60c2748250877103e465e2cd4 SHA-1: 40edbae056cb07d161b03e27222c9c0b1fb00cd0 SHA-256: 299f8a2e3479a237d6281bcfa7b1d191e846a33449cad6b4421692f2cb5d7d9e

88 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.005 PowerShell

The critical heuristic firing for CVE-2017-0199 indicates the sample is designed to exploit a vulnerability in OLE objects to load remote content. The extracted URL, 'https://betterwayforbestperoformancewhciheveryonelookingfrommebest.business@link.scogo.in/MaReVu', is the likely source of the secondary payload. Although the VBA project contains no executable statements, the presence of the OLE vulnerability and the external URL strongly suggest a malicious downloader.

Heuristics 3

OLE2Link / URL Moniker → remote loader — CVE-2017-0199 critical CVE likely CVE_2017_0199

Document contains an embedded OLE link object whose URL Moniker points to a remote URL. When the host file is opened, Office follows the link, downloads the URL, and processes the response based on its Content-Type (HTA -> mshta.exe, RTF → Word, etc.) — the documented CVE-2017-0199 primitive. The URL extension is not a reliable filter; servers can return different payloads to Office's user agent.
NOP-equivalent sled detected medium SC_NOP_EQUIV_SLED

Long run of 0x61 bytes
VBA project contains no executable statements low OLE_VBA_MACROS

Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `7f506327609c082af1cd37dde23bc2c71a000f7d1ef530b6abb66775040a7673`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1206 bytes

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