Xls.Malware.Valyria-10028437-0 — Office (OOXML) / .DOC malware analysis

Static analysis result for SHA-256 907012a9e2eff429…

MALICIOUS

Office (OOXML) / .DOC

253.5 KB Created: 2022-04-19 14:34:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2022-07-22
MD5: e45b9b8a162331e72f0b59dd9ae426eb SHA-1: 29241278cb7c096a4de1cd3085673244fae96257 SHA-256: 907012a9e2eff4291cd1162a0f2ac726f93bad0ef57e326d5767489e89bc0b0a
142 Risk Score

Malware Insights

Xls.Malware.Valyria-10028437-0 · confidence 95%

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

The file was detected by ClamAV as Xls.Malware.Valyria-10028437-0, indicating a known malicious signature. It contains an embedded OLE object, a common method for delivering secondary payloads. The presence of this object strongly suggests an attempt to execute malicious code upon opening or interaction.

Heuristics 4

  • ClamAV: Xls.Malware.Valyria-10028437-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Malware.Valyria-10028437-0
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.microsoft.com/office/drawing/2015/10/21/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/drawing/2016/ink
    • http://schemas.microsoft.com/office/drawing/2017/model3d
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2018/wordml/cex
    • http://schemas.microsoft.com/office/word/2016/wordml/cid
    • http://schemas.microsoft.com/office/word/2018/wordml
    • http://schemas.microsoft.com/office/word/2020/wordml/sdtdatahash
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
cc617b59617f417dc66f35bf2df7e1bf2362f3b80d599eac20235a94f5328a4c		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/chrome2.aksd~!kalsdk~!kasldk~! 16957 bytes
Detection
ClamAV: Xls.Malware.Valyria-10028437-0
Obfuscation or payload: unlikely
emf_00.emf
ec74c1ac1cdf6264c476a64da7a349acdaadbdea7d19cb054ce3684213b97dc7		 ooxml-emf OOXML EMF part: word/media/image2.emf 4156 bytes

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