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

Static analysis result for SHA-256 e6ebfcbf4151a1fc…

MALICIOUS

Office (OLE) / .XLS

1.26 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: d2f083c47b3cd09ea5a91e643125c9fa SHA-1: 8036d542f8f8117f2e594ba6d3a610514267ff8b SHA-256: e6ebfcbf4151a1fc5d641cd890926c63997649caccc03c6f92b12863f9e77159
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 extracted URL, 'https://link.saja.market/plmUNoURUQ?&cesspool=literate', is the target for this remote loader. Although the VBA project itself contains no executable statements, the OLE structure is sufficient to trigger the exploit. This suggests the file acts as a downloader for a secondary malicious payload.

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