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

Static analysis result for SHA-256 c3f5f690f9466651…

MALICIOUS

Office (OLE) / .XLS

673.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: b0bded6c7f87fa180ef81a9e948c34cd SHA-1: ae11e10e5233bf516ce5c503840efc0d6a50a303 SHA-256: c3f5f690f9466651c96e752a508e5b4cd23a680ce82617808f2167a57457e57c
108 Risk Score

Malware Insights

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

The critical heuristic firing indicates the exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to download and execute a remote payload. The embedded URL points to a PHP script on a suspicious domain, suggesting a delivery mechanism for further malicious activity. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document may be part of a social engineering tactic to trick users into opening password-protected archives, further obscuring the malicious payload.

Heuristics 3

  • 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.
    URL http://025475315574025475315574025475315574025475315574@025475315574/httpsopswatacademy.comcompanyauthorized-training-program.php
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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