Office (OOXML) / .DOC malware analysis — malicious · 5de1378264acf7c2

MALICIOUS

Office (OOXML) / .DOC

264.8 KB Created: 2024-09-12 00:56:00 UTC Authoring application: Microsoft Office Word 12.0000

MD5: 4115f6dbb0506ef0d0456fb5af4d15e3 SHA-1: 4a60662c298bb379b0caf6f01ba4d008dc26d47c SHA-256: 5de1378264acf7c2476c921237f77e32cce1db126ef09e9ff7ff9c2d65492892

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample exhibits multiple indicators of malicious activity, including remote template injection and an external relationship pointing to a suspicious URL. The presence of embedded OLE objects further suggests an attempt to execute arbitrary code. The primary IOC is the URL https://topkale.me/v3VdwF, which is likely used to fetch a secondary payload.

Heuristics 4

Remote template injection high OOXML_REMOTE_TEMPLATE

Document references a remote template URL (https://topkale.me/v3VdwF) — 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://topkale.me/v3VdwF
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://topkale.me/v3VdwF
- 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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ooxml_oleobject_00.bin` `4d7e8627bd8c9fc4cb421325eebb1161a0a8db92c7c08819a210e38b23b34548`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_Worksheet1.xlsx	85424 bytes
`ooxml_oleobject_01.bin` `32aa077d9847aad04391473513da34dfe012980a2f3be852e7d3e655fb14b062`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_97-2003_Worksheet1.xls	78336 bytes
`emf_00.emf` `710efac35a1820be943477b7a0869f5b0efc8979ec7ac39c728466ba1a32d6d3`	ooxml-emf	OOXML EMF part: word/media/image1.emf	39964 bytes
`emf_01.emf` `574ef96fef6b764d4047bb2d714ab5d753ec81e87bc9f5ad1526db74446e3b13`	ooxml-emf	OOXML EMF part: word/media/image2.emf	1256732 bytes

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