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

Static analysis result for SHA-256 53a72f1f77a45e47…

MALICIOUS

Office (OLE) / .XLS

295.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: ec1d37555fb0c9c1b55e198f319efb15 SHA-1: 10e5e0c0a996ccdfd0ca4cbdd6f55c2c49d13dc6 SHA-256: 53a72f1f77a45e47084294a0103726076af1b4eef291b034639e1cfb99ed597d
68 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.005 PowerShell T1204 User Execution

The critical heuristic firing indicates the exploitation of CVE-2017-0199 via an OLE2Link object, which attempts to load a remote resource from the URL 'https://jamp.to/DZ8YZk'. This suggests the file acts as a downloader for a secondary malicious payload. No VBA macros were extracted, but the OLE structure itself is indicative of exploitation.

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