Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 d6ca2188e2a25d1d…

MALICIOUS

Office (OOXML)

82.1 KB Created: 2017-04-04 22:22:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2017-06-12
MD5: 68c6d2d392e36bc62639599bfe9530ce SHA-1: ccdc3da37c1d39b08d27158569d67d95ca79db24 SHA-256: d6ca2188e2a25d1d89bdb63692da1f2e78933deb93cf69874a0925886ab2f474
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is an Office document containing an embedded OLE object. Heuristics indicate that this OLE package is designed to drop an auto-executable payload, specifically identified as a VBS file. This suggests the document is intended to trick the user into opening it, leading to the execution of a malicious script or program.

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/oleObject2.bin 13824 bytes
SHA-256: d62d9744b1a362d1d68206b26a4971a39995c7fce1a0b99f0c2eeb8858fd2290
ooxml_oleobject_00_ole10native_00.bin ole-package OOXML word/embeddings/oleObject2.bin Ole10Native stream: Ole10Native 10864 bytes
SHA-256: ce96767bf00b25c5c8d850aaeeb48936e794482130d910cb48201f43d0a42b23
emf_00.emf ooxml-emf OOXML EMF part: word/media/image3.emf 5404 bytes
SHA-256: 84ed757acc3016482e6e639204d743907c12b820c47ca9d3b43ebb1c0ee50483
emf_01.emf ooxml-emf OOXML EMF part: word/media/image2.emf 5312 bytes
SHA-256: 95a673fa7f330e64c3db5d9ae66f1bddb4e7997aefe279c5a768ae48ccedb9b7
emf_02.emf ooxml-emf OOXML EMF part: word/media/image1.emf 5220 bytes
SHA-256: 5b811c0ca224f2dbdc44155a06fc2a372bb405e05637e7eeee459f535167feed

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