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

Static analysis result for SHA-256 732a1fc933f0586b…

MALICIOUS

Office (OOXML) / .DOC

72.0 KB Created: 2022-06-14 17:58:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2022-08-02
MD5: 0a5c77687de10937e1b612b1e2f02e62 SHA-1: 2ddaffe155152a315ab9cdf464bd3da25b60153e SHA-256: 732a1fc933f0586b5e02459105ed9494fae554afa57b589d3ae13801311641fd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The sample exhibits high-confidence indicators of remote template injection and external relationship exploitation, suggesting it is designed to download and execute a secondary payload from a remote source. The presence of an embedded OLE object further supports the malicious intent. The primary IOC is the URL associated with the remote template injection.

Heuristics 4

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://srsp.app/dNCdn) — a common remote-template-injection vector used by Hancitor, Emotet and many phishing campaigns. Word can fetch and apply the remote template; macros in that template may execute depending on Office policy and trust state.
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/settings.xml.rels: https://srsp.app/dNCdn
  • 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://srsp.app/dNCdn
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • 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/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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
3eb6f3a04c31420c689c02bbf5ebe4b622eb5002998340842a97e70b41bdc37d		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/Microsoft_Excel_Worksheet1.xlsx 31087 bytes
emf_00.emf
553ba4b398e93a053242a685a54fba75c1ad445ab128723bc6e84ef875c4fddd		 ooxml-emf OOXML EMF part: word/media/image1.emf 579088 bytes

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