Malicious Office (OOXML) / .DOC — malware analysis report

Static analysis result for SHA-256 f34b433f2ff7d986…

MALICIOUS

Office (OOXML) / .DOC

210.1 KB Created: 2022-06-13 14:44:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2022-08-17
MD5: 4a6c5e71bd4aa4f73705f1e73281e117 SHA-1: 19d03697969e4e5c3842e31177cbd27081394fc0 SHA-256: f34b433f2ff7d9865ffe5765cefd45775aadc67610e0cec316e17f6e3aa72088
202 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File Execution: Malicious File

The sample is a malicious OOXML document that leverages the CVE-2022-30190 vulnerability (Follina). It contains an external OLE object pointing to the URL http://2.58.149.200/raVeo.html, which is likely used to download and execute a secondary payload. The ClamAV detection further confirms its malicious nature.

Heuristics 5

  • CVE-2022-30190 — Follina stage-1 external HTML oleObject critical CVE likely CVE_2022_30190
    External OLEObject relationship targets a remote .html with the Follina delivery shape (oleObject -> HTTP(S) HTML with trailing Moniker '!'). In live Follina samples the ms-msdt: trigger is served by the remote HTML, not the document itself.
  • OOXML OLE2Link remote loader — CVE-2017-0199 related high CVE related CVE_2017_0199_RELATED
    Document contains an o:OLEObject Type=Link whose external oleObject relationship points to a remote URL. This is the OOXML OLE2Link activation shape associated with CVE-2017-0199 delivery, but the local file does not expose URL Moniker bytes or a weaponized extension/content type, so the exact CVE cannot be proven statically.
  • ClamAV: Win.Exploit.CVE_2022_30190-9951234-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Exploit.CVE_2022_30190-9951234-1
  • External OLE object relationship high OOXML_EXTERNAL_OLE_OBJECT
    Document contains an oleObject relationship whose target is an external HTTP(S) URL. Office resolves this through OLE/object update paths rather than as a normal user-clicked hyperlink.
  • 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 http://2.58.149.200/raVeo.html
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2006/wordml

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