Office (OLE) / .XLS malware analysis — malicious · 483b97a047188b71

MALICIOUS

Office (OLE) / .XLS

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

MD5: a8a015abf1b79de59874d7b4a686f53a SHA-1: 712d665ab230e6bb5aedc82c9424ce7089fb7f0f SHA-256: 483b97a047188b7140cf3075506576df8b3300ffa13049405be934d5084fddda

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.005 Visual Basic

The file is an Excel spreadsheet that exploits CVE-2017-0199 via an OLE2Link object. This vulnerability allows it to download and execute a remote loader from the URL 'https://kryx.ru/70WZ3q?&cinema=tight&ringworm=torpid&caddy'. Although the VBA project contains no executable statements, the OLE object itself is the exploit vector.

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` `382fc1344a2f0cf6eda18645d41def8d571debc6637bc7fe02a5c83715a51bef`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2112 bytes

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