Office (OLE) / .XLS malware analysis — malicious · 4f87bdeeac886e81

MALICIOUS

Office (OLE) / .XLS

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

MD5: 8b0c678fad6f4af02d790289c97e6cc8 SHA-1: 68a5e52791e066c1ef32289d8252051dbf3bd108 SHA-256: 4f87bdeeac886e81b535ae5e747607719887744318caaf7d6d0daf2ec0e49c0a

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Untrusted Search Engine T1059 Command and Scripting Interpreter T1059.005 Command and Scripting Interpreter: Visual Basic

The critical heuristic firing indicates the exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to load remote content. The embedded URL 'https://est.mn/g9OWBF' is highly suspicious and likely serves as the initial download source for a secondary payload. Although VBA macros were extracted, they contained no executable statements, suggesting the primary exploit mechanism is the OLE object itself.

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

Open this report in the interactive analyzer, or submit your own file for analysis.