Office (OLE) / .XLS malware analysis — malicious · b171b5e7c7abd247

MALICIOUS

Office (OLE) / .XLS

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

MD5: 0eca5068b23513d7d20d9f05b5a33cde SHA-1: b11da160460403bacb257d4832ca617fcf8c9840 SHA-256: b171b5e7c7abd247edcc25f1c00301e89f1e9715ed6d98f03f4b6a6674c5834b

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.005 Visual Basic

The sample is an OLE file that exploits CVE-2017-0199 via a URL moniker to load a remote resource. The heuristic firing indicates that the file attempts to download content from 'https://zhort.de/P1zMj1'. Although no VBA code was directly executable, the presence of VBA project data suggests a macro-enabled document was the original format, likely used to deliver the exploit.

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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