Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 02ae7036c8310f5c…

MALICIOUS

Office (OOXML)

96.9 KB Created: 2017-04-16 22:18:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2017-07-23
MD5: 0184728147ab2a93d7d91af128604b8b SHA-1: 80e863170b1544443b420a1f7f6f843eeb17d550 SHA-256: 02ae7036c8310f5ceb93ed3cdf8b47fee78d61d106477d63c4bfb1c2be1ca949
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a malicious OOXML document containing an embedded OLE object. Heuristics indicate that this OLE package drops an auto-executable payload, specifically a VBS file. This suggests the document is intended to be delivered via spearphishing and execute a secondary payload upon opening.

Heuristics 3

  • 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/2012/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)
    • http://www.iec.chIn document text (OOXML body / shared strings)
    • http://ns.adobe.com/xap/1.0/In document text (OOXML body / shared strings)
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In document text (OOXML body / shared strings)
    • http://purl.org/dc/elements/1.1/In document text (OOXML body / shared strings)
    • http://ns.adobe.com/xap/1.0/mm/In document text (OOXML body / shared strings)
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#In document text (OOXML body / shared strings)
    • http://ns.adobe.com/photoshop/1.0/In document text (OOXML body / shared strings)

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject3.bin 8192 bytes
SHA-256: 0957f09c339a57c19ec0d4152ead554b8af034321f5310a5d7cc55b175fe27a3
ooxml_oleobject_00_ole10native_00.bin ole-package OOXML word/embeddings/oleObject3.bin Ole10Native stream: Ole10Native 5436 bytes
SHA-256: 27b9a2ecbb56d983021a7401666510f2564d6534901899c378f685479487ea8d
emf_00.emf ooxml-emf OOXML EMF part: word/media/image3.emf 5304 bytes
SHA-256: 630dac3e203e81dfa0ef28c62b63575967a0588697fcba8de20a1c5deab70d3b
emf_01.emf ooxml-emf OOXML EMF part: word/media/image2.emf 5304 bytes
SHA-256: 09bacae41bada5422832ce6526e1b007b4bb916434cb8db37d1d48d096d05abb
emf_02.emf ooxml-emf OOXML EMF part: word/media/image1.emf 5312 bytes
SHA-256: fa14b899cbe7ff14860fc8be2ca99b84a6eca0fd77279aaab12d9126bf4d58c5

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