Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 499ac1c38d0d9f3f…

MALICIOUS

Office (OLE)

523.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2021-06-04
MD5: cc918d6b5be75e093aad0a6645edd4b1 SHA-1: ce332048efc07124ec07b1a9ae3ba27e89c58915 SHA-256: 499ac1c38d0d9f3f874ad45c68b9e4e4008e83ecf589eb7423dd0a04840b7d72
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The sample is an Excel 4.0 macro sheet (XLM) that uses an 'enable content' lure to trick the user into running macros. The macro sheet contains embedded URLs that are likely used to download and execute a second-stage payload. The presence of XLM macros and the lure technique are indicative of a downloader malware.

Heuristics 4

  • XLM Auto_Open workbook with payload URL or enable-content lure critical OLE_XLM_AUTOOPEN_PAYLOAD_LURE
    Workbook contains an Excel 4.0 macro sheet with Auto_Open / Auto_Close and also exposes a payload URL or enable-content lure in the OLE bytes. This combination is a high-confidence XLM downloader/social-engineering pattern even when formula recovery cannot decode the full macro chain.
  • Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN
    Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://hallakjewelry.com/wRVyQrkX/utka.html In document text (OLE body)
    • https://founderscirclecapital.eu/BMqXKrcdkQ4/utka.htmlIn document text (OLE body)

Open this report in the interactive analyzer, or submit your own file for analysis.