Office (OOXML) / .DOC malware analysis — malicious · 3a0cb7a9d6102898

MALICIOUS

Office (OOXML) / .DOC

79.9 KB Created: 2023-05-24 00:47:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-05-25

MD5: 4a92b44cabe5ef9d5dc989a90ee05998 SHA-1: 849259455239e9c2fd42d791dbf991699c97cab7 SHA-256: 3a0cb7a9d6102898e2e773ec99805b0aaa3c4e3982576655a37433475ce5dc9e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution

The sample exhibits characteristics of a malicious OOXML document, specifically remote template injection and the presence of an embedded OLE object. These elements strongly suggest an attempt to download and execute a secondary payload from the identified unknown URL. The combination of these heuristics indicates a high likelihood of a malicious document designed for initial payload delivery.

Heuristics 4

Remote template injection high OOXML_REMOTE_TEMPLATE

Document references a remote template URL (https://###########################################WXIIIIIIIIIIIIIIIIIIIIIWXWW7W8E7E8WEE7E733333333WSSDSDFF4477447474747SWSDDDDWSDLLLLLLLLLL) — 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://###########################################WXIIIIIIIIIIIIIIIIIIIIIWXWW7W8E7E8WEE7E733333333WSSDSDFF4477447474747
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://###########################################WXIIIIIIIIIIIIIIIIIIIIIWXWW7W8E7E8WEE7E733333333WSSDSDFF4477447474747SWSDDDDWSDLLLLLLLLLL
- https://###########################################WXIIIIIIIIIIIIIIIIIIIIIWXWW7W8E7E8WEE7E733333333WSSDSDFF4477447474747SWSDDDDWSDLLLLLLLLLLSSDDFFFG@s.id/1JNvl
- https://###########################################WXIIIIIIIIIIIIIIIIIIIIIWXWW7W8E7E8WEE7E733333333WSSDSDFF4477447474747
- 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ooxml_oleobject_00.bin` `dac8f984e4e9dd647e36cb0f568bab0aa9187d55efe78bd82e2f007058c5507f`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_Macro-Enabled_Worksheet4.xlsm	11677 bytes
`ooxml_oleobject_01.bin` `06569b42119b471f04070b4f9585a263d32198d995692e9fdded813a2a5bdf9c`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_Macro-Enabled_Worksheet1.xlsm	11689 bytes
`emf_00.emf` `1ab8f5abd845ffd0c61a61bb09bfcf20569b80b4496bccb58c623753cf40485c`	ooxml-emf	OOXML EMF part: word/media/image1.emf	4056 bytes

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