Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 24617eff14c7e4b0…

MALICIOUS

Office (OOXML)

116.6 KB Created: 2021-05-25 17:24:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2021-05-29
MD5: 2ee59f378f8e969e424b88d47941c78c SHA-1: fa3743cd0709c7fe2182730b8d2b1cfb013a329f SHA-256: 24617eff14c7e4b0f72f33b1f7edabdf46d2bbcd8cc9b42b0a0f884f673a1a09
82 Risk Score

Malware Insights

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

The sample is an OOXML document that leverages CVE-2017-0199 to load an external object from the URL http://facextrade.com.br/wp-include/4.wiz. This technique is commonly used to download and execute a second-stage payload, indicating a malicious intent to compromise the user's system.

Heuristics 3

  • OOXML OLE2Link remote loader — CVE-2017-0199 related high CVE related CVE_2017_0199_RELATED
    Document contains an o:OLEObject Type=Link whose external oleObject relationship points to a remote URL. This is the OOXML OLE2Link activation shape associated with CVE-2017-0199 delivery, but the local file does not expose URL Moniker bytes or a weaponized extension/content type, so the exact CVE cannot be proven statically.
  • External OLE object relationship high OOXML_EXTERNAL_OLE_OBJECT
    Document contains an oleObject relationship whose target is an external HTTP(S) URL. Office resolves this through OLE/object update paths rather than as a normal user-clicked hyperlink.
  • 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://facextrade.com.br/wp-include/4.wiz In document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/9.wizIn document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/6.wizIn document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/1.wizIn document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/8.wizIn document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/10.wizIn document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/3.wizIn document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/5.wizIn document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/2.wizIn document text (OOXML body / shared strings)
    • http://facextrade.com.br/wp-include/7.wizIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2014/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2015/10/21/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartexIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/inkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2017/model3dIn 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/2018/wordml/cexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2016/wordml/cidIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2018/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2020/wordml/sdtdatahashIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2015/wordml/symexIn 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 10

Files carved from inside the sample during analysis.

FilenameKindSourceSize
emf_00.emf ooxml-emf OOXML EMF part: word/media/image2.emf 5812 bytes
SHA-256: b797bea46240f1b73327080f63f056cdda2d76ebe6d91bba8f4bfa6f86995489
emf_01.emf ooxml-emf OOXML EMF part: word/media/image3.emf 5812 bytes
SHA-256: 6e4cb5b8269f9d5394698ccbff0eaf03177ca462c1f711fb788975fc5ca2d463
emf_02.emf ooxml-emf OOXML EMF part: word/media/image4.emf 5812 bytes
SHA-256: a057ed97fd646d570707aff90e2fde9998fcc8d9bd6859932e19b643b96c2b0c
emf_03.emf ooxml-emf OOXML EMF part: word/media/image5.emf 5812 bytes
SHA-256: 47b7aab21dd734786f45e95f8590912ebdbc12ffc7033ed14d680c4d71c1366c
emf_04.emf ooxml-emf OOXML EMF part: word/media/image6.emf 5812 bytes
SHA-256: 5343cabc0add20dda0dd22c2ab76ca369177959bdde121f69ad0367fb54cfdcd
emf_05.emf ooxml-emf OOXML EMF part: word/media/image7.emf 5812 bytes
SHA-256: 65b0db419b42273b7db0e5d8682e0deb4135e3851a14c6967c423fdcd9021e02
emf_06.emf ooxml-emf OOXML EMF part: word/media/image8.emf 5812 bytes
SHA-256: fb6edb31094d7a3e32165c0fd538aff5afe5089b7683ef7bc9e11d205d38dd16
emf_07.emf ooxml-emf OOXML EMF part: word/media/image9.emf 5812 bytes
SHA-256: cf379246635990af9e7fc55d0a60c25f1fcbebea7860acd6aecda275298860a8
emf_08.emf ooxml-emf OOXML EMF part: word/media/image10.emf 5812 bytes
SHA-256: 5088a8240874dae3a262abd68b46318786097657bdb0533c0e6fb69adb16f065
emf_09.emf ooxml-emf OOXML EMF part: word/media/image11.emf 5820 bytes
SHA-256: c6c1d6b13b21b6e924dcdc0492eb9acbb898ce2d9d6b258db094901dcac4c1ce