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

Static analysis result for SHA-256 6b06af3d20fd4f35…

MALICIOUS

Office (OOXML) / .DOC

35.9 KB Created: 2022-05-29 13:24:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2022-08-17
MD5: 85829b792aa3a5768de66beacdb0a0ce SHA-1: 83fde764f70378b4b0610d87e86faac6dc5bc54b SHA-256: 6b06af3d20fd4f35fe62151d45e4344314d26b68d886d80ad6d8a375820247cf
222 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.001 PowerShell T1204 User Execution

The sample leverages CVE-2022-30190 (Follina) by using an external OLE object to load a remote HTML file from 'https://files.attend-doha-expo.com/inv.html'. This is a common technique for downloading and executing further malicious payloads. The document itself is a lure for a 'VIP Invitation to Doha Expo 2023', requesting personal information such as full name, job title, and passport number, which is typical for phishing or credential harvesting.

Heuristics 6

  • 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 OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • 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://files.attend-doha-expo.com/inv.html
    • https://www.dohaexpo2023.gov.qa/
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape
    • http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
7efd12c535414bd106caf499134aac36911a0c39b47c2629d64ede8408173c6b		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 3072 bytes
ooxml_oleobject_00_ole10native_00.bin
b2d18f1fa12fe61d75b82e4652418617f7a23409464edca91e28533e1d875944		 ole-package OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native 68 bytes

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