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

Static analysis result for SHA-256 bd5abbdd50946fa9…

MALICIOUS

Office (OLE) / .XLSX

1.20 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 9611aba962fc7ab35dc806ed9d6e7f2d SHA-1: 4cd713838db7521ef88cd3c65f14d55a38b858f1 SHA-256: bd5abbdd50946fa9d18c5711787cf8da3b1655475cc7f7a491cb46b5e61b30b2
76 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 download and execute a remote payload. The extracted URL, 'https://bestfuturewithbestnetworkingskillwhichallowbestpeoplesgogetminlineberfo.busiens@links.dansarindustries.com/xQySqS', is the likely source of this payload. The 'SE_INVOICE_LURE' heuristic suggests the document is disguised as an invoice or payment request to trick the user into opening it and triggering the exploit.

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.
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators

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