Office (OOXML) malware analysis — malicious · c813a3163a71910e

MALICIOUS

Office (OOXML)

635.0 KB Created: 2021-03-12 13:25:00 UTC Authoring application: Microsoft Office Word 14.0000 First seen: 2021-04-01

MD5: ae0f9e5f5e89a573214e82364daae02e SHA-1: ba63761fe6811917ebcdbda2ab3eb2f182fdb661 SHA-256: c813a3163a71910ebc3532298ed970a3beb989a570de6db420d56210c292c4bc

202 Risk Score

Heuristics 4

ClamAV: Win.Packed.Formbook-10026739-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Packed.Formbook-10026739-0
Ole10Native package drops an auto-executable payload critical OFFICE_PACKAGE_RISKY_FILE

OLE Package displayName or fullPath ends in a directly auto-executable extension (a runnable binary or a script the default shell host runs on double-click). Embedding such a payload inside an Office document has no benign authoring use — it is a malware-delivery dropper.
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 http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas In document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordmlIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ooxml_oleobject_00.bin`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/oleObject1.bin	997888 bytes
SHA-256: `383478c2e1304c90887efc451bb77cd527189c3708705e3b1a49d1f52b718439`
Detection ClamAV: Win.Packed.Formbook-10026739-0 Obfuscation or payload: unlikely
`ooxml_oleobject_00_ole10native_00.bin`	ole-package	OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native	987577 bytes
SHA-256: `93a3ff321b904329dfeef80a6792a5769025b19a2764fdb7aa61c950de9e3220`
Detection ClamAV: Win.Packed.Formbook-10026739-0 Obfuscation or payload: unlikely
`ooxml_oleobject_00_ole10native_00_Order_Confirmation_Copy.exe`	ole-package-payload	OOXML word/embeddings/oleObject1.bin Ole10Native payload: display_name=Order Confirmation Copy.exe; full_path=C:\Users\Dell\AppData\Local\Temp\Order Confirmation Copy.exe; temp_path=; def_file=	987136 bytes
SHA-256: `03b3405696bf5b7cda85c513eb49d54d50bd19294c90ab3f6454b05afe9aae67`
Detection ClamAV: Win.Packed.Formbook-10026739-0 Obfuscation or payload: unlikely
`emf_00.emf`	ooxml-emf	OOXML EMF part: word/media/image1.emf	5560 bytes
SHA-256: `acfc1d37f1c0e20e2ae356c7b114e2ef00c38e12fd0dcb6bf82090dc2326adba`

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