Office (OOXML) / .DOC malware analysis — malicious · 81d14ab0c8d50d96

MALICIOUS

Office (OOXML) / .DOC

54.1 KB Created: 2020-05-21 19:11:00 UTC Authoring application: Microsoft Office Word 12.0000

MD5: e59172f9951c8e90ecc0ad20786f6776 SHA-1: 1029fab4be0308bdde2f1ec01c2d45f5ff7c1fe0 SHA-256: 81d14ab0c8d50d96609a15f62da452e60f19e3ec0aefdee8e56e43b6c86ad1cf

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The OOXML document contains a VBA project with a Document_Open macro, indicating that malicious code will execute automatically when the document is opened. The presence of CreateObject and GetObject calls suggests the macro attempts to interact with the system or download additional payloads. No specific family could be identified, and no external IOCs were extracted.

Heuristics 6

Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject call
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA project inside OOXML medium OOXML_VBA

Document contains vbaProject.bin — VBA macros present
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://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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `2f446d6ccb8f66abe47eb87855eb0dc0eb2ebb2f5640fceb62c853df80c80d94`	vba-macro	oletools.olevba.extract_macros (decoded VBA source from OOXML)	9430 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.
`vbaProject_00.bin` `fd35dfae2421f4f00fd57e46f24b27c1236ecf4a4984cd3bfb949fb39c99e63c`	vba-project	OOXML VBA project: word/vbaProject.bin	31232 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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