Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 c1b87e35d9bcc379…

MALICIOUS

Office (OLE) / .XLS

1.13 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 038c9e2471b60b7ad1395c6fcbdb46de SHA-1: 4663cf7b0be0dc80f255d2e3fa210120910d8e1d SHA-256: c1b87e35d9bcc37980e406e3c9aa910aed0dde54f90ffbd521291c80b230b3f3
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.005 Visual Basic

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to load remote content. The embedded URL, https://link.uebie.de/Pnz4wf?&frost=gullible&decongestant=fine&cap=scattered&sundial=salty&sandra, is the likely source of the second-stage payload. Although VBA macros were present, they contained no executable statements, suggesting the exploit is directly leveraged by the OLE structure.

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.

FilenameKindSourceSize
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.