Office (OLE) / .XLS malware analysis — malicious · 444289bcb299480e

MALICIOUS

Office (OLE) / .XLS

116.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 3219c8a10c24bdad44078283039f40dd SHA-1: b7131f5c6b72ddcbcb28968e6e293ba6e039abed SHA-256: 444289bcb299480e25775ac0610f548008b470b499baf280c1959a9338c9e3d8

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.005 PowerShell T1059.001 PowerShell T1059.003 Windows Command Shell

The sample is an OLE file that exploits CVE-2017-0199 via a URL moniker to download and execute a remote loader. The embedded URL 'https://link.emcdn.ru/KLysAX' is the primary indicator of compromise. No VBA macros were found to be executable, but the exploit itself is sufficient to indicate malicious intent.

Heuristics 2

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.
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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